tdesktop/Telegram/SourceFiles/pspecific_wnd.cpp

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org

Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.

Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2015 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "pspecific.h"

#include "lang.h"
#include "application.h"
#include "mainwidget.h"

#include "localstorage.h"

#include "passcodewidget.h"

#include <Shobjidl.h>
#include <shellapi.h>

#include <roapi.h>
#include <wrl\client.h>
#include <wrl\implements.h>
#include <windows.ui.notifications.h>

#include <dbghelp.h>
#include <Shlwapi.h>
#include <Strsafe.h>
#include <shlobj.h>
#include <Windowsx.h>
#include <WtsApi32.h>

#include <SDKDDKVer.h>

#include <sal.h>
#include <Psapi.h>
#include <strsafe.h>
#include <ObjBase.h>
#include <propvarutil.h>
#include <functiondiscoverykeys.h>
#include <intsafe.h>
#include <guiddef.h>

#include <qpa/qplatformnativeinterface.h>

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) < (b) ? (b) : (a))

#include <gdiplus.h>

#ifndef DCX_USESTYLE
#define DCX_USESTYLE 0x00010000
#endif

#ifndef WM_NCPOINTERUPDATE
#define WM_NCPOINTERUPDATE              0x0241
#define WM_NCPOINTERDOWN                0x0242
#define WM_NCPOINTERUP                  0x0243
#endif

const WCHAR AppUserModelIdRelease[] = L"Telegram.TelegramDesktop";
const WCHAR AppUserModelIdBeta[] = L"Telegram.TelegramDesktop.Beta";

const WCHAR *AppUserModelId() {
	return cBetaVersion() ? AppUserModelIdBeta : AppUserModelIdRelease;
}

static const PROPERTYKEY pkey_AppUserModel_ID = { { 0x9F4C2855, 0x9F79, 0x4B39, { 0xA8, 0xD0, 0xE1, 0xD4, 0x2D, 0xE1, 0xD5, 0xF3 } }, 5 };
static const PROPERTYKEY pkey_AppUserModel_StartPinOption = { { 0x9F4C2855, 0x9F79, 0x4B39, { 0xA8, 0xD0, 0xE1, 0xD4, 0x2D, 0xE1, 0xD5, 0xF3 } }, 12 };

using namespace Microsoft::WRL;
using namespace ABI::Windows::UI::Notifications;
using namespace ABI::Windows::Data::Xml::Dom;
using namespace Windows::Foundation;

namespace {
    QStringList _initLogs;

	bool frameless = true;
	bool useTheme = false;
	bool useOpenWith = false;
	bool useOpenAs = false;
	bool useWtsapi = false;
	bool useShellapi = false;
	bool useToast = false;
	bool themeInited = false;
	bool finished = true;
	int menuShown = 0, menuHidden = 0;
	int dleft = 0, dtop = 0;
	QMargins simpleMargins, margins;
	HICON bigIcon = 0, smallIcon = 0, overlayIcon = 0;
	bool sessionLoggedOff = false;

	UINT tbCreatedMsgId = 0;

	ComPtr<ITaskbarList3> taskbarList;

	ComPtr<IToastNotificationManagerStatics> toastNotificationManager;
	ComPtr<IToastNotifier> toastNotifier;
	ComPtr<IToastNotificationFactory> toastNotificationFactory;
	struct ToastNotificationPtr {
		ToastNotificationPtr() {
		}
		ToastNotificationPtr(const ComPtr<IToastNotification> &ptr) : p(ptr) {
		}
		ComPtr<IToastNotification> p;
	};
	typedef QMap<PeerId, QMap<MsgId, ToastNotificationPtr> > ToastNotifications;
	ToastNotifications toastNotifications;
	struct ToastImage {
		uint64 until;
		QString path;
	};
	typedef QMap<StorageKey, ToastImage> ToastImages;
	ToastImages toastImages;
	bool ToastImageSavedFlag = false;

	HWND createTaskbarHider() {
		HINSTANCE appinst = (HINSTANCE)GetModuleHandle(0);
		HWND hWnd = 0;

		QString cn = QString("TelegramTaskbarHider");
		LPCWSTR _cn = (LPCWSTR)cn.utf16();
		WNDCLASSEX wc;

		wc.cbSize        = sizeof(wc);
		wc.style         = 0;
		wc.lpfnWndProc   = DefWindowProc;
		wc.cbClsExtra    = 0;
		wc.cbWndExtra    = 0;
		wc.hInstance     = appinst;
		wc.hIcon         = 0;
		wc.hCursor       = 0;
		wc.hbrBackground = 0;
		wc.lpszMenuName  = NULL;
		wc.lpszClassName = _cn;
		wc.hIconSm       = 0;
		if (!RegisterClassEx(&wc)) {
			DEBUG_LOG(("Application Error: could not register taskbar hider window class, error: %1").arg(GetLastError()));
			return hWnd;
		}

		hWnd = CreateWindowEx(WS_EX_TOOLWINDOW, _cn, 0, WS_POPUP, 0, 0, 0, 0, 0, 0, appinst, 0);
		if (!hWnd) {
			DEBUG_LOG(("Application Error: could not create taskbar hider window class, error: %1").arg(GetLastError()));
			return hWnd;
		}
		return hWnd;
	}

	enum {
		_PsShadowMoved = 0x01,
		_PsShadowResized = 0x02,
		_PsShadowShown = 0x04,
		_PsShadowHidden = 0x08,
		_PsShadowActivate = 0x10,
	};

	enum {
		_PsInitHor = 0x01,
		_PsInitVer = 0x02,
	};

	int32 _psSize = 0;
	class _PsShadowWindows {
	public:

		_PsShadowWindows() : screenDC(0), max_w(0), max_h(0), _x(0), _y(0), _w(0), _h(0), hidden(true), r(0), g(0), b(0), noKeyColor(RGB(255, 255, 255)) {
			for (int i = 0; i < 4; ++i) {
				dcs[i] = 0;
				bitmaps[i] = 0;
				hwnds[i] = 0;
			}
		}

		void setColor(QColor c) {
			r = c.red();
			g = c.green();
			b = c.blue();

			if (!hwnds[0]) return;
			Gdiplus::SolidBrush brush(Gdiplus::Color(_alphas[0], r, g, b));
			for (int i = 0; i < 4; ++i) {
				Gdiplus::Graphics graphics(dcs[i]);
				graphics.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);
				if ((i % 2) && _h || !(i % 2) && _w) {
					graphics.FillRectangle(&brush, 0, 0, (i % 2) ? _size : _w, (i % 2) ? _h : _size);
				}
			}
			initCorners();

			_x = _y = _w = _h = 0;
			update(_PsShadowMoved | _PsShadowResized);
		}

		bool init(QColor c) {
			style::rect topLeft = st::wndShadow;
			_fullsize = topLeft.width();
			_shift = st::wndShadowShift;
			QImage cornersImage(_fullsize, _fullsize, QImage::Format_ARGB32_Premultiplied);
			{
				QPainter p(&cornersImage);
				p.drawPixmap(QPoint(0, 0), App::sprite(), topLeft);
			}
			if (rtl()) cornersImage = cornersImage.mirrored(true, false);
			uchar *bits = cornersImage.bits();
			if (bits) {
				for (
					quint32 *p = (quint32*)bits, *end = (quint32*)(bits + cornersImage.byteCount());
					p < end;
				++p
					) {
					*p = (*p ^ 0x00ffffff) << 24;
				}
			}

			_metaSize = _fullsize + 2 * _shift;
			_alphas.reserve(_metaSize);
			_colors.reserve(_metaSize * _metaSize);
			for (int32 j = 0; j < _metaSize; ++j) {
				for (int32 i = 0; i < _metaSize; ++i) {
					_colors.push_back((i < 2 * _shift || j < 2 * _shift) ? 1 : qMax(BYTE(1), BYTE(cornersImage.pixel(QPoint(i - 2 * _shift, j - 2 * _shift)) >> 24)));
				}
			}
			uchar prev = 0;
			for (int32 i = 0; i < _metaSize; ++i) {
				uchar a = _colors[(_metaSize - 1) * _metaSize + i];
				if (a < prev) break;

				_alphas.push_back(a);
				prev = a;
			}
			_psSize = _size = _alphas.size() - 2 * _shift;

			setColor(c);

			Gdiplus::GdiplusStartupInput gdiplusStartupInput;
			ULONG_PTR gdiplusToken;
			Gdiplus::Status gdiRes = Gdiplus::GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);

			if (gdiRes != Gdiplus::Ok) {
				LOG(("Application Error: could not init GDI+, error: %1").arg((int)gdiRes));
				return false;
			}
			blend.AlphaFormat = AC_SRC_ALPHA;
			blend.SourceConstantAlpha = 255;
			blend.BlendFlags = 0;
			blend.BlendOp = AC_SRC_OVER;

			screenDC = GetDC(0);
			if (!screenDC) {
				LOG(("Application Error: could not GetDC(0), error: %2").arg(GetLastError()));
				return false;
			}

			QRect avail(Sandboxer::availableGeometry());
			max_w = avail.width();
			if (max_w < st::wndMinWidth) max_w = st::wndMinWidth;
			max_h = avail.height();
			if (max_h < st::wndMinHeight) max_h = st::wndMinHeight;

			HINSTANCE appinst = (HINSTANCE)GetModuleHandle(0);
			HWND hwnd = App::wnd() ? App::wnd()->psHwnd() : 0;

			for (int i = 0; i < 4; ++i) {
				QString cn = QString("TelegramShadow%1").arg(i);
				LPCWSTR _cn = (LPCWSTR)cn.utf16();
				WNDCLASSEX wc;

				wc.cbSize        = sizeof(wc);
				wc.style         = 0;
				wc.lpfnWndProc   = wndProc;
				wc.cbClsExtra    = 0;
				wc.cbWndExtra    = 0;
				wc.hInstance     = appinst;
				wc.hIcon         = 0;
				wc.hCursor       = 0;
				wc.hbrBackground = 0;
				wc.lpszMenuName  = NULL;
				wc.lpszClassName = _cn;
				wc.hIconSm       = 0;
				if (!RegisterClassEx(&wc)) {
					LOG(("Application Error: could not register shadow window class %1, error: %2").arg(i).arg(GetLastError()));
					destroy();
					return false;
				}

				hwnds[i] = CreateWindowEx(WS_EX_LAYERED | WS_EX_TOOLWINDOW, _cn, 0, WS_POPUP, 0, 0, 0, 0, 0, 0, appinst, 0);
				if (!hwnds[i]) {
					LOG(("Application Error: could not create shadow window class %1, error: %2").arg(i).arg(GetLastError()));
					destroy();
					return false;
				}
				SetWindowLong(hwnds[i], GWL_HWNDPARENT, (LONG)hwnd);

				dcs[i] = CreateCompatibleDC(screenDC);
				if (!dcs[i]) {
					LOG(("Application Error: could not create dc for shadow window class %1, error: %2").arg(i).arg(GetLastError()));
					destroy();
					return false;
				}

				bitmaps[i] = CreateCompatibleBitmap(screenDC, (i % 2) ? _size : max_w, (i % 2) ? max_h : _size);
				if (!bitmaps[i]) {
					LOG(("Application Error: could not create bitmap for shadow window class %1, error: %2").arg(i).arg(GetLastError()));
					destroy();
					return false;
				}

				SelectObject(dcs[i], bitmaps[i]);
			}

			initCorners();
			return true;
		}

		void initCorners(int directions = (_PsInitHor | _PsInitVer)) {
			bool hor = (directions & _PsInitHor), ver = (directions & _PsInitVer);
			Gdiplus::Graphics graphics0(dcs[0]), graphics1(dcs[1]), graphics2(dcs[2]), graphics3(dcs[3]);
			graphics0.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);
			graphics1.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);
			graphics2.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);
			graphics3.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);

			Gdiplus::SolidBrush brush(Gdiplus::Color(_alphas[0], r, g, b));
			if (hor) graphics0.FillRectangle(&brush, 0, 0, _fullsize - (_size - _shift), 2 * _shift);

			if (ver) {
				graphics1.FillRectangle(&brush, 0, 0, _size, 2 * _shift);
				graphics3.FillRectangle(&brush, 0, 0, _size, 2 * _shift);
				graphics1.FillRectangle(&brush, _size - _shift, 2 * _shift, _shift, _fullsize);
				graphics3.FillRectangle(&brush, 0, 2 * _shift, _shift, _fullsize);
			}

			if (hor) {
				for (int j = 2 * _shift; j < _size; ++j) {
					for (int k = 0; k < _fullsize - (_size - _shift); ++k) {
						brush.SetColor(Gdiplus::Color(_colors[j * _metaSize + k + (_size + _shift)], r, g, b));
						graphics0.FillRectangle(&brush, k, j, 1, 1);
						graphics2.FillRectangle(&brush, k, _size - (j - 2 * _shift) - 1, 1, 1);
					}
				}
				for (int j = _size; j < _size + 2 * _shift; ++j) {
					for (int k = 0; k < _fullsize - (_size - _shift); ++k) {
						brush.SetColor(Gdiplus::Color(_colors[j * _metaSize + k + (_size + _shift)], r, g, b));
						graphics2.FillRectangle(&brush, k, _size - (j - 2 * _shift) - 1, 1, 1);
					}
				}
			}
			if (ver) {
				for (int j = 2 * _shift; j < _fullsize + 2 * _shift; ++j) {
					for (int k = _shift; k < _size; ++k) {
						brush.SetColor(Gdiplus::Color(_colors[j * _metaSize + (k + _shift)], r, g, b));
						graphics1.FillRectangle(&brush, _size - k - 1, j, 1, 1);
						graphics3.FillRectangle(&brush, k, j, 1, 1);
					}
				}
			}
		}
		void verCorners(int h, Gdiplus::Graphics *pgraphics1, Gdiplus::Graphics *pgraphics3) {
			Gdiplus::SolidBrush brush(Gdiplus::Color(_alphas[0], r, g, b));
			pgraphics1->FillRectangle(&brush, _size - _shift, h - _fullsize, _shift, _fullsize);
			pgraphics3->FillRectangle(&brush, 0, h - _fullsize, _shift, _fullsize);
			for (int j = 0; j < _fullsize; ++j) {
				for (int k = _shift; k < _size; ++k) {
					brush.SetColor(Gdiplus::Color(_colors[(j + 2 * _shift) * _metaSize + k + _shift], r, g, b));
					pgraphics1->FillRectangle(&brush, _size - k - 1, h - j - 1, 1, 1);
					pgraphics3->FillRectangle(&brush, k, h - j - 1, 1, 1);
				}
			}
		}
		void horCorners(int w, Gdiplus::Graphics *pgraphics0, Gdiplus::Graphics *pgraphics2) {
			Gdiplus::SolidBrush brush(Gdiplus::Color(_alphas[0], r, g, b));
			pgraphics0->FillRectangle(&brush, w - 2 * _size - (_fullsize - (_size - _shift)), 0, _fullsize - (_size - _shift), 2 * _shift);
			for (int j = 2 * _shift; j < _size; ++j) {
				for (int k = 0; k < _fullsize - (_size - _shift); ++k) {
					brush.SetColor(Gdiplus::Color(_colors[j * _metaSize + k + (_size + _shift)], r, g, b));
					pgraphics0->FillRectangle(&brush, w - 2 * _size - k - 1, j, 1, 1);
					pgraphics2->FillRectangle(&brush, w - 2 * _size - k - 1, _size - (j - 2 * _shift) - 1, 1, 1);
				}
			}
			for (int j = _size; j < _size + 2 * _shift; ++j) {
				for (int k = 0; k < _fullsize - (_size - _shift); ++k) {
					brush.SetColor(Gdiplus::Color(_colors[j * _metaSize + k + (_size + _shift)], r, g, b));
					pgraphics2->FillRectangle(&brush, w - 2 * _size - k - 1, _size - (j - 2 * _shift) - 1, 1, 1);
				}
			}
		}

		void update(int changes, WINDOWPOS *pos = 0) {
			HWND hwnd = App::wnd() ? App::wnd()->psHwnd() : 0;
			if (!hwnd || !hwnds[0]) return;

			if (changes == _PsShadowActivate) {
				for (int i = 0; i < 4; ++i) {
					SetWindowPos(hwnds[i], hwnd, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
				}
				return;
			}

			if (changes & _PsShadowHidden) {
				if (!hidden) {
					for (int i = 0; i < 4; ++i) {
						hidden = true;
						ShowWindow(hwnds[i], SW_HIDE);
					}
				}
				return;
			}
			if (!App::wnd()->psPosInited()) return;

			int x = _x, y = _y, w = _w, h = _h;
			if (pos && (!(pos->flags & SWP_NOMOVE) || !(pos->flags & SWP_NOSIZE) || !(pos->flags & SWP_NOREPOSITION))) {
				if (!(pos->flags & SWP_NOMOVE)) {
					x = pos->x - _size;
					y = pos->y - _size;
				} else if (pos->flags & SWP_NOSIZE) {
					for (int i = 0; i < 4; ++i) {
						SetWindowPos(hwnds[i], hwnd, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
					}
					return;
				}
				if (!(pos->flags & SWP_NOSIZE)) {
					w = pos->cx + 2 * _size;
					h = pos->cy + 2 * _size;
				}
			} else {
				RECT r;
				GetWindowRect(hwnd, &r);
				x = r.left - _size;
				y = r.top - _size;
				w = r.right + _size - x;
				h = r.bottom + _size - y;
			}
			if (h < 2 * _fullsize + 2 * _shift) {
				h = 2 * _fullsize + 2 * _shift;
			}
			if (w < 2 * (_fullsize + _shift)) {
				w = 2 * (_fullsize + _shift);
			}

			if (w != _w) {
				int from = (_w > 2 * (_fullsize + _shift)) ? (_w - _size - _fullsize - _shift) : (_fullsize - (_size - _shift));
				int to = w - _size - _fullsize - _shift;
				if (w > max_w) {
					from = _fullsize - (_size - _shift);
					max_w *= 2;
					for (int i = 0; i < 4; i += 2) {
						DeleteObject(bitmaps[i]);
						bitmaps[i] = CreateCompatibleBitmap(screenDC, max_w, _size);
						SelectObject(dcs[i], bitmaps[i]);
					}
					initCorners(_PsInitHor);
				}
				Gdiplus::Graphics graphics0(dcs[0]), graphics2(dcs[2]);
				graphics0.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);
				graphics2.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);
				Gdiplus::SolidBrush brush(Gdiplus::Color(_alphas[0], r, g, b));
				if (to > from) {
					graphics0.FillRectangle(&brush, from, 0, to - from, 2 * _shift);
					for (int i = 2 * _shift; i < _size; ++i) {
						Gdiplus::Pen pen(Gdiplus::Color(_alphas[i], r, g, b));
						graphics0.DrawLine(&pen, from, i, to, i);
						graphics2.DrawLine(&pen, from, _size - (i - 2 * _shift) - 1, to, _size - (i - 2 * _shift) - 1);
					}
					for (int i = _size; i < _size + 2 * _shift; ++i) {
						Gdiplus::Pen pen(Gdiplus::Color(_alphas[i], r, g, b));
						graphics2.DrawLine(&pen, from, _size - (i - 2 * _shift) - 1, to, _size - (i - 2 * _shift) - 1);
					}
				}
				if (_w > w) {
					graphics0.FillRectangle(&brush, w - _size - _fullsize - _shift, 0, _fullsize - (_size - _shift), _size);
					graphics2.FillRectangle(&brush, w - _size - _fullsize - _shift, 0, _fullsize - (_size - _shift), _size);
				}
				horCorners(w, &graphics0, &graphics2);
				POINT p0 = { x + _size, y }, p2 = { x + _size, y + h - _size }, f = { 0, 0 };
				SIZE s = { w - 2 * _size, _size };
				updateWindow(0, &p0, &s);
				updateWindow(2, &p2, &s);
			} else if (x != _x || y != _y) {
				POINT p0 = { x + _size, y }, p2 = { x + _size, y + h - _size };
				updateWindow(0, &p0);
				updateWindow(2, &p2);
			} else if (h != _h) {
				POINT p2 = { x + _size, y + h - _size };
				updateWindow(2, &p2);
			}

			if (h != _h) {
				int from = (_h > 2 * _fullsize + 2 * _shift) ? (_h - _fullsize) : (_fullsize + 2 * _shift);
				int to = h - _fullsize;
				if (h > max_h) {
					from = (_fullsize + 2 * _shift);
					max_h *= 2;
					for (int i = 1; i < 4; i += 2) {
						DeleteObject(bitmaps[i]);
						bitmaps[i] = CreateCompatibleBitmap(dcs[i], _size, max_h);
						SelectObject(dcs[i], bitmaps[i]);
					}
					initCorners(_PsInitVer);
				}
				Gdiplus::Graphics graphics1(dcs[1]), graphics3(dcs[3]);
				graphics1.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);
				graphics3.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);

				Gdiplus::SolidBrush brush(Gdiplus::Color(_alphas[0], r, g, b));
				if (to > from) {
					graphics1.FillRectangle(&brush, _size - _shift, from, _shift, to - from);
					graphics3.FillRectangle(&brush, 0, from, _shift, to - from);
					for (int i = 2 * _shift; i < _size + _shift; ++i) {
						Gdiplus::Pen pen(Gdiplus::Color(_alphas[i], r, g, b));
						graphics1.DrawLine(&pen, _size + _shift - i - 1, from, _size + _shift - i - 1, to);
						graphics3.DrawLine(&pen, i - _shift, from, i - _shift, to);
					}
				}
				if (_h > h) {
					graphics1.FillRectangle(&brush, 0, h - _fullsize, _size, _fullsize);
					graphics3.FillRectangle(&brush, 0, h - _fullsize, _size, _fullsize);
				}
				verCorners(h, &graphics1, &graphics3);

				POINT p1 = {x + w - _size, y}, p3 = {x, y}, f = {0, 0};
				SIZE s = { _size, h };
				updateWindow(1, &p1, &s);
				updateWindow(3, &p3, &s);
			} else if (x != _x || y != _y) {
				POINT p1 = { x + w - _size, y }, p3 = { x, y };
				updateWindow(1, &p1);
				updateWindow(3, &p3);
			} else if (w != _w) {
				POINT p1 = { x + w - _size, y };
				updateWindow(1, &p1);
			}
			_x = x;
			_y = y;
			_w = w;
			_h = h;

			if (hidden && (changes & _PsShadowShown)) {
				for (int i = 0; i < 4; ++i) {
					SetWindowPos(hwnds[i], hwnd, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW | SWP_NOACTIVATE);
				}
				hidden = false;
			}
		}

		void updateWindow(int i, POINT *p, SIZE *s = 0) {
			static POINT f = {0, 0};
			if (s) {
				UpdateLayeredWindow(hwnds[i], (s ? screenDC : 0), p, s, (s ? dcs[i] : 0), (s ? (&f) : 0), noKeyColor, &blend, ULW_ALPHA);
			} else {
				SetWindowPos(hwnds[i], 0, p->x, p->y, 0, 0, SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOZORDER);
			}
		}

		void destroy() {
			for (int i = 0; i < 4; ++i) {
				if (dcs[i]) DeleteDC(dcs[i]);
				if (bitmaps[i]) DeleteObject(bitmaps[i]);
				if (hwnds[i]) DestroyWindow(hwnds[i]);
				dcs[i] = 0;
				bitmaps[i] = 0;
				hwnds[i] = 0;
			}
			if (screenDC) ReleaseDC(0, screenDC);
		}

	private:

		int _x, _y, _w, _h;
		int _metaSize, _fullsize, _size, _shift;
		QVector<BYTE> _alphas, _colors;

		bool hidden;

		HWND hwnds[4];
		HDC dcs[4], screenDC;
		HBITMAP bitmaps[4];
		int max_w, max_h;
		BLENDFUNCTION blend;

		BYTE r, g, b;
		COLORREF noKeyColor;

		static LRESULT CALLBACK _PsShadowWindows::wndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);

	};
	_PsShadowWindows _psShadowWindows;

	LRESULT CALLBACK _PsShadowWindows::wndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
		if (finished) return DefWindowProc(hwnd, msg, wParam, lParam);

		int i;
		for (i = 0; i < 4; ++i) {
			if (_psShadowWindows.hwnds[i] && hwnd == _psShadowWindows.hwnds[i]) {
				break;
			}
		}
		if (i == 4) return DefWindowProc(hwnd, msg, wParam, lParam);

		switch (msg) {
			case WM_CLOSE:
				App::wnd()->close();
			break;
			case WM_NCHITTEST: {
				int32 xPos = GET_X_LPARAM(lParam), yPos = GET_Y_LPARAM(lParam);
				switch (i) {
				case 0: return HTTOP;
				case 1: return (yPos < _psShadowWindows._y + _psSize) ? HTTOPRIGHT : ((yPos >= _psShadowWindows._y + _psShadowWindows._h - _psSize) ? HTBOTTOMRIGHT : HTRIGHT);
				case 2: return HTBOTTOM;
				case 3: return (yPos < _psShadowWindows._y + _psSize) ? HTTOPLEFT : ((yPos >= _psShadowWindows._y + _psShadowWindows._h - _psSize) ? HTBOTTOMLEFT : HTLEFT);
				}
				return HTTRANSPARENT;
			} break;

			case WM_NCACTIVATE: return DefWindowProc(hwnd, msg, wParam, lParam);
			case WM_NCLBUTTONDOWN:
			case WM_NCLBUTTONUP:
			case WM_NCLBUTTONDBLCLK:
			case WM_NCMBUTTONDOWN:
			case WM_NCMBUTTONUP:
			case WM_NCMBUTTONDBLCLK:
			case WM_NCRBUTTONDOWN:
			case WM_NCRBUTTONUP:
			case WM_NCRBUTTONDBLCLK:
			case WM_NCXBUTTONDOWN:
			case WM_NCXBUTTONUP:
			case WM_NCXBUTTONDBLCLK:
			case WM_NCMOUSEHOVER:
			case WM_NCMOUSELEAVE:
			case WM_NCMOUSEMOVE:
			case WM_NCPOINTERUPDATE:
			case WM_NCPOINTERDOWN:
			case WM_NCPOINTERUP:
				if (App::wnd() && App::wnd()->psHwnd()) {
					if (msg == WM_NCLBUTTONDOWN) {
						::SetForegroundWindow(App::wnd()->psHwnd());
					}
					LRESULT res = SendMessage(App::wnd()->psHwnd(), msg, wParam, lParam);
					return res;
				}
				return 0;
			break;
			case WM_ACTIVATE:
				if (App::wnd() && App::wnd()->psHwnd() && wParam == WA_ACTIVE) {
					if ((HWND)lParam != App::wnd()->psHwnd()) {
						::SetForegroundWindow(hwnd);
						::SetWindowPos(App::wnd()->psHwnd(), hwnd, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
					}
				}
				return DefWindowProc(hwnd, msg, wParam, lParam);
			break;
			default:
				return DefWindowProc(hwnd, msg, wParam, lParam);
		}
		return 0;
	}

	QColor _shActive(0, 0, 0), _shInactive(0, 0, 0);

	typedef HRESULT (FAR STDAPICALLTYPE *f_setWindowTheme)(HWND hWnd, LPCWSTR pszSubAppName, LPCWSTR pszSubIdList);
	f_setWindowTheme setWindowTheme = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_openAs_RunDLL)(HWND hWnd, HINSTANCE hInstance, LPCWSTR lpszCmdLine, int nCmdShow);
	f_openAs_RunDLL openAs_RunDLL = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_shOpenWithDialog)(HWND hwndParent, const OPENASINFO *poainfo);
	f_shOpenWithDialog shOpenWithDialog = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_shAssocEnumHandlers)(PCWSTR pszExtra, ASSOC_FILTER afFilter, IEnumAssocHandlers **ppEnumHandler);
	f_shAssocEnumHandlers shAssocEnumHandlers = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_shCreateItemFromParsingName)(PCWSTR pszPath, IBindCtx *pbc, REFIID riid, void **ppv);
	f_shCreateItemFromParsingName shCreateItemFromParsingName = 0;

	typedef BOOL (FAR STDAPICALLTYPE *f_wtsRegisterSessionNotification)(HWND hWnd, DWORD dwFlags);
	f_wtsRegisterSessionNotification wtsRegisterSessionNotification = 0;

	typedef BOOL (FAR STDAPICALLTYPE *f_wtsUnRegisterSessionNotification)(HWND hWnd);
	f_wtsUnRegisterSessionNotification wtsUnRegisterSessionNotification = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_shQueryUserNotificationState)(QUERY_USER_NOTIFICATION_STATE *pquns);
	f_shQueryUserNotificationState shQueryUserNotificationState = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_setCurrentProcessExplicitAppUserModelID)(__in PCWSTR AppID);
	f_setCurrentProcessExplicitAppUserModelID setCurrentProcessExplicitAppUserModelID = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_roGetActivationFactory)(_In_ HSTRING activatableClassId,	_In_ REFIID iid, _COM_Outptr_ void ** factory);
	f_roGetActivationFactory roGetActivationFactory = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_windowsCreateStringReference)(_In_reads_opt_(length + 1) PCWSTR sourceString, UINT32 length,	_Out_ HSTRING_HEADER * hstringHeader, _Outptr_result_maybenull_ _Result_nullonfailure_ HSTRING * string);
	f_windowsCreateStringReference windowsCreateStringReference = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_windowsDeleteString)(_In_opt_ HSTRING string);
	f_windowsDeleteString windowsDeleteString = 0;

	typedef HRESULT (FAR STDAPICALLTYPE *f_propVariantToString)(_In_ REFPROPVARIANT propvar, _Out_writes_(cch) PWSTR psz, _In_ UINT cch);
	f_propVariantToString propVariantToString = 0;

	template <typename TFunction>
	bool loadFunction(HINSTANCE dll, LPCSTR name, TFunction &func) {
		if (!dll) return false;

		func = (TFunction)GetProcAddress(dll, name);
		return !!func;
	}

	class _PsInitializer {
	public:
		_PsInitializer() {
			frameless = false;

			setupUx();
			setupShell();
			setupWtsapi();
			setupPropSys();
			setupCombase();

			useTheme = !!setWindowTheme;
		}
		void setupUx() {
			HINSTANCE procId = LoadLibrary(L"UXTHEME.DLL");

			loadFunction(procId, "SetWindowTheme", setWindowTheme);
		}
		void setupShell() {
			HINSTANCE procId = LoadLibrary(L"SHELL32.DLL");
			setupOpenWith(procId);
			setupOpenAs(procId);
			setupShellapi(procId);
			setupAppUserModel(procId);
		}
		void setupOpenWith(HINSTANCE procId) {
			if (!loadFunction(procId, "SHAssocEnumHandlers", shAssocEnumHandlers)) return;
			if (!loadFunction(procId, "SHCreateItemFromParsingName", shCreateItemFromParsingName)) return;
			useOpenWith = true;
		}
		void setupOpenAs(HINSTANCE procId) {
			if (!loadFunction(procId, "SHOpenWithDialog", shOpenWithDialog) && !loadFunction(procId, "OpenAs_RunDLLW", openAs_RunDLL)) return;
			useOpenAs = true;
		}
		void setupShellapi(HINSTANCE procId) {
			if (!loadFunction(procId, "SHQueryUserNotificationState", shQueryUserNotificationState)) return;
			useShellapi = true;
		}
		void setupAppUserModel(HINSTANCE procId) {
			if (!loadFunction(procId, "SetCurrentProcessExplicitAppUserModelID", setCurrentProcessExplicitAppUserModelID)) return;
		}
		void setupWtsapi() {
			HINSTANCE procId = LoadLibrary(L"WTSAPI32.DLL");

			if (!loadFunction(procId, "WTSRegisterSessionNotification", wtsRegisterSessionNotification)) return;
			if (!loadFunction(procId, "WTSUnRegisterSessionNotification", wtsUnRegisterSessionNotification)) return;
			useWtsapi = true;
		}
		void setupCombase() {
			if (!setCurrentProcessExplicitAppUserModelID) return;

			HINSTANCE procId = LoadLibrary(L"COMBASE.DLL");
			setupToast(procId);
		}
		void setupPropSys() {
			HINSTANCE procId = LoadLibrary(L"PROPSYS.DLL");
			if (!loadFunction(procId, "PropVariantToString", propVariantToString)) return;
		}
		void setupToast(HINSTANCE procId) {
			if (!propVariantToString) return;
			if (QSysInfo::windowsVersion() < QSysInfo::WV_WINDOWS8) return;
			if (!loadFunction(procId, "RoGetActivationFactory", roGetActivationFactory)) return;

			HINSTANCE otherProcId = LoadLibrary(L"api-ms-win-core-winrt-string-l1-1-0.dll");
			if (!loadFunction(otherProcId, "WindowsCreateStringReference", windowsCreateStringReference)) return;
			if (!loadFunction(otherProcId, "WindowsDeleteString", windowsDeleteString)) return;

			useToast = true;
		}
	};
	_PsInitializer _psInitializer;

	class _PsEventFilter : public QAbstractNativeEventFilter {
	public:
		_PsEventFilter() {
		}

		bool nativeEventFilter(const QByteArray &eventType, void *message, long *result) {
			Window *wnd = App::wnd();
			if (!wnd) return false;

			MSG *msg = (MSG*)message;
			if (msg->message == WM_ENDSESSION) {
				App::quit();
				return false;
			}
			if (msg->hwnd == wnd->psHwnd() || msg->hwnd && !wnd->psHwnd()) {
				return mainWindowEvent(msg->hwnd, msg->message, msg->wParam, msg->lParam, (LRESULT*)result);
			}
			return false;
		}

		bool mainWindowEvent(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam, LRESULT *result) {
			if (tbCreatedMsgId && msg == tbCreatedMsgId) {
				HRESULT hr = CoCreateInstance(CLSID_TaskbarList, nullptr, CLSCTX_ALL, IID_PPV_ARGS(&taskbarList));
				if (!SUCCEEDED(hr)) {
					taskbarList.Reset();
				}
			}
			switch (msg) {

			case WM_TIMECHANGE: {
				App::wnd()->checkAutoLockIn(100);
			} return false;

			case WM_WTSSESSION_CHANGE: {
				if (wParam == WTS_SESSION_LOGOFF || wParam == WTS_SESSION_LOCK) {
					sessionLoggedOff = true;
				} else if (wParam == WTS_SESSION_LOGON || wParam == WTS_SESSION_UNLOCK) {
					sessionLoggedOff = false;
				}
			} return false;

			case WM_DESTROY: {
				App::quit();
			} return false;

			case WM_ACTIVATE: {
				if (LOWORD(wParam) == WA_CLICKACTIVE) {
					App::wnd()->inactivePress(true);
				}
				if (LOWORD(wParam) != WA_INACTIVE) {
					_psShadowWindows.setColor(_shActive);
					_psShadowWindows.update(_PsShadowActivate);
				} else {
					_psShadowWindows.setColor(_shInactive);
				}
				QTimer::singleShot(0, App::wnd(), SLOT(updateCounter()));
				App::wnd()->update();
			} return false;

			case WM_NCPAINT: if (QSysInfo::WindowsVersion >= QSysInfo::WV_WINDOWS8) return false; *result = 0; return true;

			case WM_NCCALCSIZE: {
				WINDOWPLACEMENT wp;
				wp.length = sizeof(WINDOWPLACEMENT);
				if (GetWindowPlacement(hWnd, &wp) && wp.showCmd == SW_SHOWMAXIMIZED) {
					LPNCCALCSIZE_PARAMS params = (LPNCCALCSIZE_PARAMS)lParam;
					LPRECT r = (wParam == TRUE) ? &params->rgrc[0] : (LPRECT)lParam;
					HMONITOR hMonitor = MonitorFromPoint({ (r->left + r->right) / 2, (r->top + r->bottom) / 2 }, MONITOR_DEFAULTTONEAREST);
					if (hMonitor) {
						MONITORINFO mi;
						mi.cbSize = sizeof(mi);
						if (GetMonitorInfo(hMonitor, &mi)) {
							*r = mi.rcWork;
						}
					}
				}
				*result = 0;
				return true;
			}

			case WM_NCACTIVATE: {
				*result = DefWindowProc(hWnd, msg, wParam, -1);
			} return true;

			case WM_WINDOWPOSCHANGING:
			case WM_WINDOWPOSCHANGED: {
				WINDOWPLACEMENT wp;
				wp.length = sizeof(WINDOWPLACEMENT);
				if (GetWindowPlacement(hWnd, &wp) && (wp.showCmd == SW_SHOWMAXIMIZED || wp.showCmd == SW_SHOWMINIMIZED)) {
					_psShadowWindows.update(_PsShadowHidden);
				} else {
					_psShadowWindows.update(_PsShadowMoved | _PsShadowResized, (WINDOWPOS*)lParam);
				}
			} return false;

			case WM_SIZE: {
				if (App::wnd()) {
					if (wParam == SIZE_MAXIMIZED || wParam == SIZE_RESTORED || wParam == SIZE_MINIMIZED) {
						if (wParam != SIZE_RESTORED || App::wnd()->windowState() != Qt::WindowNoState) {
							Qt::WindowState state = Qt::WindowNoState;
							if (wParam == SIZE_MAXIMIZED) {
								state = Qt::WindowMaximized;
							} else if (wParam == SIZE_MINIMIZED) {
								state = Qt::WindowMinimized;
							}
							emit App::wnd()->windowHandle()->windowStateChanged(state);
						} else {
							App::wnd()->psUpdatedPosition();
						}
						App::wnd()->psUpdateMargins();
						int changes = (wParam == SIZE_MINIMIZED || wParam == SIZE_MAXIMIZED) ? _PsShadowHidden : (_PsShadowResized | _PsShadowShown);
						_psShadowWindows.update(changes);
					}
				}
			} return false;

			case WM_SHOWWINDOW: {
				LONG style = GetWindowLong(hWnd, GWL_STYLE);
				int changes = _PsShadowResized | ((wParam && !(style & (WS_MAXIMIZE | WS_MINIMIZE))) ? _PsShadowShown : _PsShadowHidden);
				_psShadowWindows.update(changes);
			} return false;

			case WM_MOVE: {
				_psShadowWindows.update(_PsShadowMoved);
				App::wnd()->psUpdatedPosition();
			} return false;

			case WM_NCHITTEST: {
				POINTS p = MAKEPOINTS(lParam);
				RECT r;
				GetWindowRect(hWnd, &r);
				HitTestType res = App::wnd()->hitTest(QPoint(p.x - r.left + dleft, p.y - r.top + dtop));
				switch (res) {
					case HitTestClient:
					case HitTestSysButton:   *result = HTCLIENT; break;
					case HitTestIcon:        *result = HTCAPTION; break;
					case HitTestCaption:     *result = HTCAPTION; break;
					case HitTestTop:         *result = HTTOP; break;
					case HitTestTopRight:    *result = HTTOPRIGHT; break;
					case HitTestRight:       *result = HTRIGHT; break;
					case HitTestBottomRight: *result = HTBOTTOMRIGHT; break;
					case HitTestBottom:      *result = HTBOTTOM; break;
					case HitTestBottomLeft:  *result = HTBOTTOMLEFT; break;
					case HitTestLeft:        *result = HTLEFT; break;
					case HitTestTopLeft:     *result = HTTOPLEFT; break;
					case HitTestNone:
					default:                 *result = HTTRANSPARENT; break;
				};
			} return true;

			case WM_NCRBUTTONUP: {
				SendMessage(hWnd, WM_SYSCOMMAND, SC_MOUSEMENU, lParam);
			} return true;

			case WM_NCLBUTTONDOWN: {
				POINTS p = MAKEPOINTS(lParam);
				RECT r;
				GetWindowRect(hWnd, &r);
				HitTestType res = App::wnd()->hitTest(QPoint(p.x - r.left + dleft, p.y - r.top + dtop));
				switch (res) {
					case HitTestIcon:
						if (menuHidden && getms() < menuHidden + 10) {
							menuHidden = 0;
							if (getms() < menuShown + GetDoubleClickTime()) {
								App::wnd()->close();
							}
						} else {
							QRect icon = App::wnd()->iconRect();
							p.x = r.left - dleft + icon.left();
							p.y = r.top - dtop + icon.top() + icon.height();
							App::wnd()->psUpdateSysMenu(App::wnd()->windowHandle()->windowState());
							menuShown = getms();
							menuHidden = 0;
							TrackPopupMenu(App::wnd()->psMenu(), TPM_LEFTALIGN | TPM_TOPALIGN | TPM_LEFTBUTTON, p.x, p.y, 0, hWnd, 0);
							menuHidden = getms();
						}
					return true;
				};
			} return false;

			case WM_NCLBUTTONDBLCLK: {
				POINTS p = MAKEPOINTS(lParam);
				RECT r;
				GetWindowRect(hWnd, &r);
				HitTestType res = App::wnd()->hitTest(QPoint(p.x - r.left + dleft, p.y - r.top + dtop));
				switch (res) {
					case HitTestIcon: App::wnd()->close(); return true;
				};
			} return false;

			case WM_SYSCOMMAND: {
				if (wParam == SC_MOUSEMENU) {
					POINTS p = MAKEPOINTS(lParam);
					App::wnd()->psUpdateSysMenu(App::wnd()->windowHandle()->windowState());
					TrackPopupMenu(App::wnd()->psMenu(), TPM_LEFTALIGN | TPM_TOPALIGN | TPM_LEFTBUTTON, p.x, p.y, 0, hWnd, 0);
				}
			} return false;

			case WM_COMMAND: {
				if (HIWORD(wParam)) return false;
				int cmd = LOWORD(wParam);
				switch (cmd) {
					case SC_CLOSE: App::wnd()->close(); return true;
					case SC_MINIMIZE: App::wnd()->setWindowState(Qt::WindowMinimized); return true;
					case SC_MAXIMIZE: App::wnd()->setWindowState(Qt::WindowMaximized); return true;
					case SC_RESTORE: App::wnd()->setWindowState(Qt::WindowNoState); return true;
				}
			} return true;

			}
			return false;
		}
	};
	_PsEventFilter *_psEventFilter = 0;

};

PsMainWindow::PsMainWindow(QWidget *parent) : QMainWindow(parent), ps_hWnd(0), ps_menu(0), icon256(qsl(":/gui/art/icon256.png")), iconbig256(qsl(":/gui/art/iconbig256.png")), wndIcon(QPixmap::fromImage(icon256, Qt::ColorOnly)),
    ps_iconBig(0), ps_iconSmall(0), ps_iconOverlay(0), trayIcon(0), trayIconMenu(0), posInited(false), ps_tbHider_hWnd(createTaskbarHider()) {
	tbCreatedMsgId = RegisterWindowMessage(L"TaskbarButtonCreated");
	connect(&ps_cleanNotifyPhotosTimer, SIGNAL(timeout()), this, SLOT(psCleanNotifyPhotos()));
}

void PsMainWindow::psShowTrayMenu() {
	trayIconMenu->popup(QCursor::pos());
}

void PsMainWindow::psCleanNotifyPhotosIn(int32 dt) {
	if (dt < 0) {
		if (ps_cleanNotifyPhotosTimer.isActive() && ps_cleanNotifyPhotosTimer.remainingTime() <= -dt) return;
		dt = -dt;
	}
	ps_cleanNotifyPhotosTimer.start(dt);
}

void PsMainWindow::psCleanNotifyPhotos() {
	uint64 ms = getms(true), minuntil = 0;
	for (ToastImages::iterator i = toastImages.begin(); i != toastImages.end();) {
		if (!i->until) {
			++i;
			continue;
		}
		if (i->until <= ms) {
			QFile(i->path).remove();
			i = toastImages.erase(i);
		} else {
			if (!minuntil || minuntil > i->until) {
				minuntil = i->until;
			}
			++i;
		}
	}
	if (minuntil) psCleanNotifyPhotosIn(int32(minuntil - ms));
}

void PsMainWindow::psRefreshTaskbarIcon() {
	QWidget *w = new QWidget(this);
	w->setWindowFlags(Qt::Tool | Qt::FramelessWindowHint);
	w->setGeometry(x() + 1, y() + 1, 1, 1);
	QPalette p(w->palette());
	p.setColor(QPalette::Background, st::titleBG->c);
	QWindow *wnd = w->windowHandle();
	w->setPalette(p);
	w->show();
	w->activateWindow();
	delete w;
}

void PsMainWindow::psTrayMenuUpdated() {
}

void PsMainWindow::psSetupTrayIcon() {
    if (!trayIcon) {
        trayIcon = new QSystemTrayIcon(this);

        QIcon icon(QPixmap::fromImage(App::wnd()->iconLarge(), Qt::ColorOnly));

        trayIcon->setIcon(icon);
        trayIcon->setToolTip(QString::fromStdWString(AppName));
        connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(toggleTray(QSystemTrayIcon::ActivationReason)), Qt::UniqueConnection);
        connect(trayIcon, SIGNAL(messageClicked()), this, SLOT(showFromTray()));
        App::wnd()->updateTrayMenu();
    }
    psUpdateCounter();

    trayIcon->show();
    psUpdateDelegate();
}

void PsMainWindow::psUpdateWorkmode() {
	switch (cWorkMode()) {
	case dbiwmWindowAndTray: {
        psSetupTrayIcon();
		HWND psOwner = (HWND)GetWindowLong(ps_hWnd, GWL_HWNDPARENT);
		if (psOwner) {
			SetWindowLong(ps_hWnd, GWL_HWNDPARENT, 0);
			psRefreshTaskbarIcon();
		}
	} break;

	case dbiwmTrayOnly: {
        psSetupTrayIcon();
		HWND psOwner = (HWND)GetWindowLong(ps_hWnd, GWL_HWNDPARENT);
		if (!psOwner) {
			SetWindowLong(ps_hWnd, GWL_HWNDPARENT, (LONG)ps_tbHider_hWnd);
		}
	} break;

	case dbiwmWindowOnly: {
		if (trayIcon) {
			trayIcon->setContextMenu(0);
			trayIcon->deleteLater();
		}
		trayIcon = 0;

		HWND psOwner = (HWND)GetWindowLong(ps_hWnd, GWL_HWNDPARENT);
		if (psOwner) {
			SetWindowLong(ps_hWnd, GWL_HWNDPARENT, 0);
			psRefreshTaskbarIcon();
		}
	} break;
	}
}

HICON qt_pixmapToWinHICON(const QPixmap &);
HBITMAP qt_pixmapToWinHBITMAP(const QPixmap &, int hbitmapFormat);

static HICON _qt_createHIcon(const QIcon &icon, int xSize, int ySize) {
    if (!icon.isNull()) {
        const QPixmap pm = icon.pixmap(icon.actualSize(QSize(xSize, ySize)));
        if (!pm.isNull())
            return qt_pixmapToWinHICON(pm);
    }
    return 0;
}

void PsMainWindow::psUpdateCounter() {
	int32 counter = App::histories().unreadFull - (cIncludeMuted() ? 0 : App::histories().unreadMuted);
	bool muted = cIncludeMuted() ? (App::histories().unreadMuted >= counter) : false;

	style::color bg = muted ? st::counterMuteBG : st::counterBG;
	QIcon iconSmall, iconBig;
	iconSmall.addPixmap(QPixmap::fromImage(iconWithCounter(16, counter, bg, true), Qt::ColorOnly));
	iconSmall.addPixmap(QPixmap::fromImage(iconWithCounter(32, counter, bg, true), Qt::ColorOnly));
	iconBig.addPixmap(QPixmap::fromImage(iconWithCounter(32, taskbarList.Get() ? 0 : counter, bg, false), Qt::ColorOnly));
	iconBig.addPixmap(QPixmap::fromImage(iconWithCounter(64, taskbarList.Get() ? 0 : counter, bg, false), Qt::ColorOnly));
	if (trayIcon) {
		trayIcon->setIcon(iconSmall);
	}

	setWindowTitle((counter > 0) ? qsl("Telegram (%1)").arg(counter) : qsl("Telegram"));
	psDestroyIcons();
    ps_iconSmall = _qt_createHIcon(iconSmall, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON));
    ps_iconBig = _qt_createHIcon(iconBig, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON));
    SendMessage(ps_hWnd, WM_SETICON, 0, (LPARAM)ps_iconSmall);
	SendMessage(ps_hWnd, WM_SETICON, 1, (LPARAM)(ps_iconBig ? ps_iconBig : ps_iconSmall));
	if (taskbarList.Get()) {
		if (counter > 0) {
			QIcon iconOverlay;
			iconOverlay.addPixmap(QPixmap::fromImage(iconWithCounter(-16, counter, bg, false), Qt::ColorOnly));
			iconOverlay.addPixmap(QPixmap::fromImage(iconWithCounter(-32, counter, bg, false), Qt::ColorOnly));
			ps_iconOverlay = _qt_createHIcon(iconOverlay, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON));
		}
		QString description = counter > 0 ? QString("%1 unread messages").arg(counter) : qsl("No unread messages");
		taskbarList->SetOverlayIcon(ps_hWnd, ps_iconOverlay, description.toStdWString().c_str());
	}
	SetWindowPos(ps_hWnd, 0, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
}

void PsMainWindow::psUpdateDelegate() {
}

namespace {
	HMONITOR enumMonitor = 0;
	RECT enumMonitorWork;

	BOOL CALLBACK _monitorEnumProc(
	  _In_  HMONITOR hMonitor,
	  _In_  HDC hdcMonitor,
	  _In_  LPRECT lprcMonitor,
	  _In_  LPARAM dwData
	) {
		MONITORINFOEX info;
		info.cbSize = sizeof(info);
		GetMonitorInfo(hMonitor, &info);
		if (dwData == hashCrc32(info.szDevice, sizeof(info.szDevice))) {
			enumMonitor = hMonitor;
			enumMonitorWork = info.rcWork;
			return FALSE;
		}
		return TRUE;
	}
}

void PsMainWindow::psInitSize() {
	setMinimumWidth(st::wndMinWidth);
	setMinimumHeight(st::wndMinHeight);

	TWindowPos pos(cWindowPos());
	QRect avail(Sandboxer::availableGeometry());
	bool maximized = false;
	QRect geom(avail.x() + (avail.width() - st::wndDefWidth) / 2, avail.y() + (avail.height() - st::wndDefHeight) / 2, st::wndDefWidth, st::wndDefHeight);
	if (pos.w && pos.h) {
		if (pos.y < 0) pos.y = 0;
		enumMonitor = 0;
		EnumDisplayMonitors(0, 0, &_monitorEnumProc, pos.moncrc);
		if (enumMonitor) {
			int32 w = enumMonitorWork.right - enumMonitorWork.left, h = enumMonitorWork.bottom - enumMonitorWork.top;
			if (w >= st::wndMinWidth && h >= st::wndMinHeight) {
				if (pos.w > w) pos.w = w;
				if (pos.h > h) pos.h = h;
				pos.x += enumMonitorWork.left;
				pos.y += enumMonitorWork.top;
				if (pos.x < enumMonitorWork.right - 10 && pos.y < enumMonitorWork.bottom - 10) {
					geom = QRect(pos.x, pos.y, pos.w, pos.h);
				}
			}
		}
		maximized = pos.maximized;
	}
	setGeometry(geom);
}

bool InitToastManager();
bool CreateToast(PeerData *peer, int32 msgId, bool showpix, const QString &title, const QString &subtitle, const QString &msg);
void CheckPinnedAppUserModelId();
void CleanupAppUserModelIdShortcut();

void PsMainWindow::psInitFrameless() {
	psUpdatedPositionTimer.setSingleShot(true);
	connect(&psUpdatedPositionTimer, SIGNAL(timeout()), this, SLOT(psSavePosition()));

	QPlatformNativeInterface *i = QGuiApplication::platformNativeInterface();
    ps_hWnd = static_cast<HWND>(i->nativeResourceForWindow(QByteArrayLiteral("handle"), windowHandle()));

	if (!ps_hWnd) return;

	if (useWtsapi) wtsRegisterSessionNotification(ps_hWnd, NOTIFY_FOR_THIS_SESSION);

	if (frameless) {
		setWindowFlags(Qt::FramelessWindowHint);
	}

//	RegisterApplicationRestart(NULL, 0);
	if (!InitToastManager()) {
		useToast = false;
	}

	psInitSysMenu();
}

void PsMainWindow::psSavePosition(Qt::WindowState state) {
	if (state == Qt::WindowActive) state = windowHandle()->windowState();
	if (state == Qt::WindowMinimized || !posInited) return;

	TWindowPos pos(cWindowPos()), curPos = pos;

	if (state == Qt::WindowMaximized) {
		curPos.maximized = 1;
	} else {
		RECT w;
		GetWindowRect(ps_hWnd, &w);
		curPos.x = w.left;
		curPos.y = w.top;
		curPos.w = w.right - w.left;
		curPos.h = w.bottom - w.top;
		curPos.maximized = 0;
	}

	HMONITOR hMonitor = MonitorFromWindow(ps_hWnd, MONITOR_DEFAULTTONEAREST);
	if (hMonitor) {
		MONITORINFOEX info;
		info.cbSize = sizeof(info);
		GetMonitorInfo(hMonitor, &info);
		if (!curPos.maximized) {
			curPos.x -= info.rcWork.left;
			curPos.y -= info.rcWork.top;
		}
		curPos.moncrc = hashCrc32(info.szDevice, sizeof(info.szDevice));
	}

	if (curPos.w >= st::wndMinWidth && curPos.h >= st::wndMinHeight) {
		if (curPos.x != pos.x || curPos.y != pos.y || curPos.w != pos.w || curPos.h != pos.h || curPos.moncrc != pos.moncrc || curPos.maximized != pos.maximized) {
			cSetWindowPos(curPos);
			Local::writeSettings();
		}
	}
}

void PsMainWindow::psUpdatedPosition() {
	psUpdatedPositionTimer.start(SaveWindowPositionTimeout);
}

bool PsMainWindow::psHasNativeNotifications() {
	return useToast;
}

Q_DECLARE_METATYPE(QMargins);
void PsMainWindow::psFirstShow() {
	if (useToast) {
		cSetCustomNotifies(!cWindowsNotifications());
	} else {
		cSetCustomNotifies(true);
	}

	_psShadowWindows.init(_shActive);
	finished = false;

	psUpdateMargins();

	_psShadowWindows.update(_PsShadowHidden);
	bool showShadows = true;

	show();
	if (cWindowPos().maximized) {
		setWindowState(Qt::WindowMaximized);
	}

	if ((cLaunchMode() == LaunchModeAutoStart && cStartMinimized()) || cStartInTray()) {
		setWindowState(Qt::WindowMinimized);
		if (cWorkMode() == dbiwmTrayOnly || cWorkMode() == dbiwmWindowAndTray) {
			hide();
		} else {
			show();
		}
		showShadows = false;
	} else {
		show();
	}

	posInited = true;
	if (showShadows) {
		_psShadowWindows.update(_PsShadowMoved | _PsShadowResized | _PsShadowShown);
	}
}

bool PsMainWindow::psHandleTitle() {
	return true;
}

void PsMainWindow::psInitSysMenu() {
	Qt::WindowStates states = windowState();
	ps_menu = GetSystemMenu(ps_hWnd, FALSE);
	psUpdateSysMenu(windowHandle()->windowState());
}

void PsMainWindow::psUpdateSysMenu(Qt::WindowState state) {
	if (!ps_menu) return;

	int menuToDisable = SC_RESTORE;
	if (state == Qt::WindowMaximized) {
		menuToDisable = SC_MAXIMIZE;
	} else if (state == Qt::WindowMinimized) {
		menuToDisable = SC_MINIMIZE;
	}
	int itemCount = GetMenuItemCount(ps_menu);
	for (int i = 0; i < itemCount; ++i) {
		MENUITEMINFO itemInfo = {0};
		itemInfo.cbSize = sizeof(itemInfo);
		itemInfo.fMask = MIIM_TYPE | MIIM_STATE | MIIM_ID;
		if (GetMenuItemInfo(ps_menu, i, TRUE, &itemInfo)) {
			if (itemInfo.fType & MFT_SEPARATOR) {
				continue;
			}
			if (itemInfo.wID && !(itemInfo.fState & MFS_DEFAULT)) {
				UINT fOldState = itemInfo.fState, fState = itemInfo.fState & ~MFS_DISABLED;
				if (itemInfo.wID == SC_CLOSE) {
					fState |= MFS_DEFAULT;
				} else if (itemInfo.wID == menuToDisable || (itemInfo.wID != SC_MINIMIZE && itemInfo.wID != SC_MAXIMIZE && itemInfo.wID != SC_RESTORE)) {
					fState |= MFS_DISABLED;
				}
				itemInfo.fMask = MIIM_STATE;
				itemInfo.fState = fState;
				if (!SetMenuItemInfo(ps_menu, i, TRUE, &itemInfo)) {
					DEBUG_LOG(("PS Error: could not set state %1 to menu item %2, old state %3, error %4").arg(fState).arg(itemInfo.wID).arg(fOldState).arg(GetLastError()));
					DestroyMenu(ps_menu);
					ps_menu = 0;
					break;
				}
			}
		} else {
			DEBUG_LOG(("PS Error: could not get state, menu item %1 of %2, error %3").arg(i).arg(itemCount).arg(GetLastError()));
			DestroyMenu(ps_menu);
			ps_menu = 0;
			break;
		}
	}
}

void PsMainWindow::psUpdateMargins() {
	if (!ps_hWnd) return;

	RECT r, a;

	GetClientRect(ps_hWnd, &r);
	a = r;

	LONG style = GetWindowLong(ps_hWnd, GWL_STYLE), styleEx = GetWindowLong(ps_hWnd, GWL_EXSTYLE);
	AdjustWindowRectEx(&a, style, false, styleEx);
	QMargins margins = QMargins(a.left - r.left, a.top - r.top, r.right - a.right, r.bottom - a.bottom);
	if (style & WS_MAXIMIZE) {
		RECT w, m;
		GetWindowRect(ps_hWnd, &w);
		m = w;

		HMONITOR hMonitor = MonitorFromRect(&w, MONITOR_DEFAULTTONEAREST);
		if (hMonitor) {
			MONITORINFO mi;
			mi.cbSize = sizeof(mi);
			GetMonitorInfo(hMonitor, &mi);
			m = mi.rcWork;
		}

		dleft = w.left - m.left;
		dtop = w.top - m.top;

		margins.setLeft(margins.left() - w.left + m.left);
		margins.setRight(margins.right() - m.right + w.right);
		margins.setBottom(margins.bottom() - m.bottom + w.bottom);
		margins.setTop(margins.top() - w.top + m.top);
	} else {
		dleft = dtop = 0;
	}

	QPlatformNativeInterface *i = QGuiApplication::platformNativeInterface();
	i->setWindowProperty(windowHandle()->handle(), qsl("WindowsCustomMargins"), QVariant::fromValue<QMargins>(margins));
	if (!themeInited) {
		themeInited = true;
		if (useTheme) {
			if (QSysInfo::WindowsVersion < QSysInfo::WV_WINDOWS8) {
				setWindowTheme(ps_hWnd, L" ", L" ");
				QApplication::setStyle(QStyleFactory::create(qsl("Windows")));
			}
		}
	}
}

void PsMainWindow::psFlash() {
	if (GetForegroundWindow() == ps_hWnd) return;

	FLASHWINFO info;
	info.cbSize = sizeof(info);
	info.hwnd = ps_hWnd;
	info.dwFlags = FLASHW_ALL;
	info.dwTimeout = 0;
	info.uCount = 1;
	FlashWindowEx(&info);
}

HWND PsMainWindow::psHwnd() const {
	return ps_hWnd;
}

HMENU PsMainWindow::psMenu() const {
	return ps_menu;
}

void PsMainWindow::psDestroyIcons() {
	if (ps_iconBig) {
        DestroyIcon(ps_iconBig);
        ps_iconBig = 0;
    }
    if (ps_iconSmall) {
        DestroyIcon(ps_iconSmall);
        ps_iconSmall = 0;
    }
	if (ps_iconOverlay) {
		DestroyIcon(ps_iconOverlay);
		ps_iconOverlay = 0;
	}
}

PsMainWindow::~PsMainWindow() {
	if (useWtsapi) {
		QPlatformNativeInterface *i = QGuiApplication::platformNativeInterface();
		if (HWND hWnd = static_cast<HWND>(i->nativeResourceForWindow(QByteArrayLiteral("handle"), windowHandle()))) {
			wtsUnRegisterSessionNotification(hWnd);
		}
	}

	if (taskbarList) taskbarList.Reset();

	toastNotifications.clear();
	if (toastNotificationManager) toastNotificationManager.Reset();
	if (toastNotifier) toastNotifier.Reset();
	if (toastNotificationFactory) toastNotificationFactory.Reset();

	finished = true;
	if (ps_menu) DestroyMenu(ps_menu);
	psDestroyIcons();
	_psShadowWindows.destroy();
	if (ps_tbHider_hWnd) DestroyWindow(ps_tbHider_hWnd);
}

namespace {
	QRect _monitorRect;
	uint64 _monitorLastGot = 0;
}

QRect psDesktopRect() {
	uint64 tnow = getms();
	if (tnow > _monitorLastGot + 1000 || tnow < _monitorLastGot) {
		_monitorLastGot = tnow;
		HMONITOR hMonitor = MonitorFromWindow(App::wnd()->psHwnd(), MONITOR_DEFAULTTONEAREST);
		if (hMonitor) {
			MONITORINFOEX info;
			info.cbSize = sizeof(info);
			GetMonitorInfo(hMonitor, &info);
			_monitorRect = QRect(info.rcWork.left, info.rcWork.top, info.rcWork.right - info.rcWork.left, info.rcWork.bottom - info.rcWork.top);
		} else {
			_monitorRect = QApplication::desktop()->availableGeometry(App::wnd());
		}
	}
	return _monitorRect;
}

void psShowOverAll(QWidget *w, bool canFocus) {
}

void psBringToBack(QWidget *w) {
}

void PsMainWindow::psActivateNotify(NotifyWindow *w) {
}

void PsMainWindow::psClearNotifies(PeerId peerId) {
	if (!toastNotifier) return;

	if (peerId) {
		ToastNotifications::iterator i = toastNotifications.find(peerId);
		if (i != toastNotifications.cend()) {
			QMap<MsgId, ToastNotificationPtr> temp = i.value();
			toastNotifications.erase(i);

			for (QMap<MsgId, ToastNotificationPtr>::const_iterator j = temp.cbegin(), e = temp.cend(); j != e; ++j) {
				toastNotifier->Hide(j->p.Get());
			}
		}
	} else {
		ToastNotifications temp = toastNotifications;
		toastNotifications.clear();

		for (ToastNotifications::const_iterator i = temp.cbegin(), end = temp.cend(); i != end; ++i) {
			for (QMap<MsgId, ToastNotificationPtr>::const_iterator j = i->cbegin(), e = i->cend(); j != e; ++j) {
				toastNotifier->Hide(j->p.Get());
			}
		}
	}
}

void PsMainWindow::psNotifyShown(NotifyWindow *w) {
}

void PsMainWindow::psPlatformNotify(HistoryItem *item, int32 fwdCount) {
	QString title = (!App::passcoded() && cNotifyView() <= dbinvShowName) ? item->history()->peer->name : qsl("Telegram Desktop");
	QString subtitle = (!App::passcoded() && cNotifyView() <= dbinvShowName) ? item->notificationHeader() : QString();
	bool showpix = (!App::passcoded() && cNotifyView() <= dbinvShowName);
	QString msg = (!App::passcoded() && cNotifyView() <= dbinvShowPreview) ? (fwdCount < 2 ? item->notificationText() : lng_forward_messages(lt_count, fwdCount)) : lang(lng_notification_preview);

	CreateToast(item->history()->peer, item->id, showpix, title, subtitle, msg);
}

QAbstractNativeEventFilter *psNativeEventFilter() {
	delete _psEventFilter;
	_psEventFilter = new _PsEventFilter();
	return _psEventFilter;
}

void psDeleteDir(const QString &dir) {
	std::wstring wDir = QDir::toNativeSeparators(dir).toStdWString();
	WCHAR path[4096];
	memcpy(path, wDir.c_str(), (wDir.size() + 1) * sizeof(WCHAR));
	path[wDir.size() + 1] = 0;
	SHFILEOPSTRUCT file_op = {
		NULL,
		FO_DELETE,
		path,
		L"",
		FOF_NOCONFIRMATION |
		FOF_NOERRORUI |
		FOF_SILENT,
		false,
		0,
		L""
	};
	int res = SHFileOperation(&file_op);
}

namespace {
	BOOL CALLBACK _ActivateProcess(HWND hWnd, LPARAM lParam) {
		uint64 &processId(*(uint64*)lParam);

		DWORD dwProcessId;
		::GetWindowThreadProcessId(hWnd, &dwProcessId);

		if ((uint64)dwProcessId == processId) { // found top-level window
			static const int32 nameBufSize = 1024;
			WCHAR nameBuf[nameBufSize];
			int32 len = GetWindowText(hWnd, nameBuf, nameBufSize);
			if (len && len < nameBufSize) {
				if (QRegularExpression(qsl("^Telegram(\\s*\\(\\d+\\))?$")).match(QString::fromStdWString(nameBuf)).hasMatch()) {
					BOOL res = ::SetForegroundWindow(hWnd);
					::SetFocus(hWnd);
					return FALSE;
				}
			}
		}
		return TRUE;
	}
}

namespace {
	uint64 _lastUserAction = 0;
}

void psUserActionDone() {
	_lastUserAction = getms(true);
	if (sessionLoggedOff) sessionLoggedOff = false;
}

bool psIdleSupported() {
	LASTINPUTINFO lii;
	lii.cbSize = sizeof(LASTINPUTINFO);
	return GetLastInputInfo(&lii);
}

uint64 psIdleTime() {
	LASTINPUTINFO lii;
	lii.cbSize = sizeof(LASTINPUTINFO);
	return GetLastInputInfo(&lii) ? (GetTickCount() - lii.dwTime) : (getms(true) - _lastUserAction);
}

bool psSkipAudioNotify() {
	QUERY_USER_NOTIFICATION_STATE state;
	if (useShellapi && SUCCEEDED(shQueryUserNotificationState(&state))) {
		if (state == QUNS_NOT_PRESENT || state == QUNS_PRESENTATION_MODE) return true;
	}
	return sessionLoggedOff;
}

bool psSkipDesktopNotify() {
	QUERY_USER_NOTIFICATION_STATE state;
	if (useShellapi && SUCCEEDED(shQueryUserNotificationState(&state))) {
		if (state == QUNS_PRESENTATION_MODE || state == QUNS_RUNNING_D3D_FULL_SCREEN/* || state == QUNS_BUSY*/) return true;
	}
	return false;
}

QStringList psInitLogs() {
    return _initLogs;
}

void psClearInitLogs() {
    _initLogs = QStringList();
}

void psActivateProcess(uint64 pid) {
	if (pid) {
		::EnumWindows((WNDENUMPROC)_ActivateProcess, (LPARAM)&pid);
	}
}

QString psCurrentCountry() {
	int chCount = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SISO3166CTRYNAME, 0, 0);
	if (chCount && chCount < 128) {
		WCHAR wstrCountry[128];
		int len = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SISO3166CTRYNAME, wstrCountry, chCount);
		return len ? QString::fromStdWString(std::wstring(wstrCountry)) : QString::fromLatin1(DefaultCountry);
	}
	return QString::fromLatin1(DefaultCountry);
}

namespace {
	QString langById(int lngId) {
		int primary = lngId & 0xFF;
		switch (primary) {
			case 0x36: return qsl("af");
			case 0x1C: return qsl("sq");
			case 0x5E: return qsl("am");
			case 0x01: return qsl("ar");
			case 0x2B: return qsl("hy");
			case 0x4D: return qsl("as");
			case 0x2C: return qsl("az");
			case 0x45: return qsl("bn");
			case 0x6D: return qsl("ba");
			case 0x2D: return qsl("eu");
			case 0x23: return qsl("be");
			case 0x1A:
				if (lngId == LANG_CROATIAN) {
					return qsl("hr");
				} else if (lngId == LANG_BOSNIAN_NEUTRAL || lngId == LANG_BOSNIAN) {
					return qsl("bs");
				}
				return qsl("sr");
			break;
			case 0x7E: return qsl("br");
			case 0x02: return qsl("bg");
			case 0x92: return qsl("ku");
			case 0x03: return qsl("ca");
			case 0x04: return qsl("zh");
			case 0x83: return qsl("co");
			case 0x05: return qsl("cs");
			case 0x06: return qsl("da");
			case 0x65: return qsl("dv");
			case 0x13: return qsl("nl");
			case 0x09: return qsl("en");
			case 0x25: return qsl("et");
			case 0x38: return qsl("fo");
			case 0x0B: return qsl("fi");
			case 0x0c: return qsl("fr");
			case 0x62: return qsl("fy");
			case 0x56: return qsl("gl");
			case 0x37: return qsl("ka");
			case 0x07: return qsl("de");
			case 0x08: return qsl("el");
			case 0x6F: return qsl("kl");
			case 0x47: return qsl("gu");
			case 0x68: return qsl("ha");
			case 0x0D: return qsl("he");
			case 0x39: return qsl("hi");
			case 0x0E: return qsl("hu");
			case 0x0F: return qsl("is");
			case 0x70: return qsl("ig");
			case 0x21: return qsl("id");
			case 0x5D: return qsl("iu");
			case 0x3C: return qsl("ga");
			case 0x34: return qsl("xh");
			case 0x35: return qsl("zu");
			case 0x10: return qsl("it");
			case 0x11: return qsl("ja");
			case 0x4B: return qsl("kn");
			case 0x3F: return qsl("kk");
			case 0x53: return qsl("kh");
			case 0x87: return qsl("rw");
			case 0x12: return qsl("ko");
			case 0x40: return qsl("ky");
			case 0x54: return qsl("lo");
			case 0x26: return qsl("lv");
			case 0x27: return qsl("lt");
			case 0x6E: return qsl("lb");
			case 0x2F: return qsl("mk");
			case 0x3E: return qsl("ms");
			case 0x4C: return qsl("ml");
			case 0x3A: return qsl("mt");
			case 0x81: return qsl("mi");
			case 0x4E: return qsl("mr");
			case 0x50: return qsl("mn");
			case 0x61: return qsl("ne");
			case 0x14: return qsl("no");
			case 0x82: return qsl("oc");
			case 0x48: return qsl("or");
			case 0x63: return qsl("ps");
			case 0x29: return qsl("fa");
			case 0x15: return qsl("pl");
			case 0x16: return qsl("pt");
			case 0x67: return qsl("ff");
			case 0x46: return qsl("pa");
			case 0x18: return qsl("ro");
			case 0x17: return qsl("rm");
			case 0x19: return qsl("ru");
			case 0x3B: return qsl("se");
			case 0x4F: return qsl("sa");
			case 0x32: return qsl("tn");
			case 0x59: return qsl("sd");
			case 0x5B: return qsl("si");
			case 0x1B: return qsl("sk");
			case 0x24: return qsl("sl");
			case 0x0A: return qsl("es");
			case 0x41: return qsl("sw");
			case 0x1D: return qsl("sv");
			case 0x28: return qsl("tg");
			case 0x49: return qsl("ta");
			case 0x44: return qsl("tt");
			case 0x4A: return qsl("te");
			case 0x1E: return qsl("th");
			case 0x51: return qsl("bo");
			case 0x73: return qsl("ti");
			case 0x1F: return qsl("tr");
			case 0x42: return qsl("tk");
			case 0x22: return qsl("uk");
			case 0x20: return qsl("ur");
			case 0x80: return qsl("ug");
			case 0x43: return qsl("uz");
			case 0x2A: return qsl("vi");
			case 0x52: return qsl("cy");
			case 0x88: return qsl("wo");
			case 0x78: return qsl("ii");
			case 0x6A: return qsl("yo");
		}
		return QString::fromLatin1(DefaultLanguage);
	}
}

QString psCurrentLanguage() {
	int chCount = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SNAME, 0, 0);
	if (chCount && chCount < 128) {
		WCHAR wstrLocale[128];
		int len = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SNAME, wstrLocale, chCount);
		if (!len) return QString::fromLatin1(DefaultLanguage);
		QString locale = QString::fromStdWString(std::wstring(wstrLocale));
		QRegularExpressionMatch m = QRegularExpression("(^|[^a-z])([a-z]{2})-").match(locale);
		if (m.hasMatch()) {
			return m.captured(2);
		}
	}
	chCount = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_ILANGUAGE, 0, 0);
	if (chCount && chCount < 128) {
		WCHAR wstrLocale[128];
		int len = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_ILANGUAGE, wstrLocale, chCount), lngId = 0;
		if (len < 5) return QString::fromLatin1(DefaultLanguage);

		for (int i = 0; i < 4; ++i) {
			WCHAR ch = wstrLocale[i];
			lngId *= 16;
			if (ch >= WCHAR('0') && ch <= WCHAR('9')) {
				lngId += (ch - WCHAR('0'));
			} else if (ch >= WCHAR('A') && ch <= WCHAR('F')) {
				lngId += (10 + ch - WCHAR('A'));
			} else {
				return QString::fromLatin1(DefaultLanguage);
			}
		}
		return langById(lngId);
	}
	return QString::fromLatin1(DefaultLanguage);
}

QString psAppDataPath() {
	static const int maxFileLen = MAX_PATH * 10;
	WCHAR wstrPath[maxFileLen];
	if (GetEnvironmentVariable(L"APPDATA", wstrPath, maxFileLen)) {
		QDir appData(QString::fromStdWString(std::wstring(wstrPath)));
		return appData.absolutePath() + '/' + QString::fromWCharArray(AppName) + '/';
	}
	return QString();
}

QString psAppDataPathOld() {
	static const int maxFileLen = MAX_PATH * 10;
	WCHAR wstrPath[maxFileLen];
	if (GetEnvironmentVariable(L"APPDATA", wstrPath, maxFileLen)) {
		QDir appData(QString::fromStdWString(std::wstring(wstrPath)));
		return appData.absolutePath() + '/' + QString::fromWCharArray(AppNameOld) + '/';
	}
	return QString();
}

QString psDownloadPath() {
	return QStandardPaths::writableLocation(QStandardPaths::DownloadLocation) + '/' + QString::fromWCharArray(AppName) + '/';
}

QString psCurrentExeDirectory(int argc, char *argv[]) {
	LPWSTR *args;
	int argsCount;
	args = CommandLineToArgvW(GetCommandLine(), &argsCount);
	if (args) {
		QFileInfo info(QDir::fromNativeSeparators(QString::fromWCharArray(args[0])));
		if (info.isFile()) {
			return info.absoluteDir().absolutePath() + '/';
		}
		LocalFree(args);
	}
	return QString();
}

QString psCurrentExeName(int argc, char *argv[]) {
	LPWSTR *args;
	int argsCount;
	args = CommandLineToArgvW(GetCommandLine(), &argsCount);
	if (args) {
		QFileInfo info(QDir::fromNativeSeparators(QString::fromWCharArray(args[0])));
		if (info.isFile()) {
			return info.fileName();
		}
		LocalFree(args);
	}
	return QString();
}

void psDoCleanup() {
	try {
		psAutoStart(false, true);
		psSendToMenu(false, true);
		CleanupAppUserModelIdShortcut();
	} catch (...) {
	}
}

int psCleanup() {
	__try
	{
		psDoCleanup();
	}
	__except(EXCEPTION_EXECUTE_HANDLER)
	{
		return 0;
	}
	return 0;
}

void psDoFixPrevious() {
	try {
		static const int bufSize = 4096;
		DWORD checkType, checkSize = bufSize * 2;
		WCHAR checkStr[bufSize];

		QString appId = QString::fromStdWString(AppId);
		QString newKeyStr1 = QString("Software\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\%1_is1").arg(appId);
		QString newKeyStr2 = QString("Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\%1_is1").arg(appId);
		QString oldKeyStr1 = QString("SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\%1_is1").arg(appId);
		QString oldKeyStr2 = QString("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\%1_is1").arg(appId);
		HKEY newKey1, newKey2, oldKey1, oldKey2;
		LSTATUS newKeyRes1 = RegOpenKeyEx(HKEY_CURRENT_USER, newKeyStr1.toStdWString().c_str(), 0, KEY_READ, &newKey1);
		LSTATUS newKeyRes2 = RegOpenKeyEx(HKEY_CURRENT_USER, newKeyStr2.toStdWString().c_str(), 0, KEY_READ, &newKey2);
		LSTATUS oldKeyRes1 = RegOpenKeyEx(HKEY_LOCAL_MACHINE, oldKeyStr1.toStdWString().c_str(), 0, KEY_READ, &oldKey1);
		LSTATUS oldKeyRes2 = RegOpenKeyEx(HKEY_LOCAL_MACHINE, oldKeyStr2.toStdWString().c_str(), 0, KEY_READ, &oldKey2);

		bool existNew1 = (newKeyRes1 == ERROR_SUCCESS) && (RegQueryValueEx(newKey1, L"InstallDate", 0, &checkType, (BYTE*)checkStr, &checkSize) == ERROR_SUCCESS); checkSize = bufSize * 2;
		bool existNew2 = (newKeyRes2 == ERROR_SUCCESS) && (RegQueryValueEx(newKey2, L"InstallDate", 0, &checkType, (BYTE*)checkStr, &checkSize) == ERROR_SUCCESS); checkSize = bufSize * 2;
		bool existOld1 = (oldKeyRes1 == ERROR_SUCCESS) && (RegQueryValueEx(oldKey1, L"InstallDate", 0, &checkType, (BYTE*)checkStr, &checkSize) == ERROR_SUCCESS); checkSize = bufSize * 2;
		bool existOld2 = (oldKeyRes2 == ERROR_SUCCESS) && (RegQueryValueEx(oldKey2, L"InstallDate", 0, &checkType, (BYTE*)checkStr, &checkSize) == ERROR_SUCCESS); checkSize = bufSize * 2;

		if (newKeyRes1 == ERROR_SUCCESS) RegCloseKey(newKey1);
		if (newKeyRes2 == ERROR_SUCCESS) RegCloseKey(newKey2);
		if (oldKeyRes1 == ERROR_SUCCESS) RegCloseKey(oldKey1);
		if (oldKeyRes2 == ERROR_SUCCESS) RegCloseKey(oldKey2);

		if (existNew1 || existNew2) {
			oldKeyRes1 = existOld1 ? RegDeleteKey(HKEY_LOCAL_MACHINE, oldKeyStr1.toStdWString().c_str()) : ERROR_SUCCESS;
			oldKeyRes2 = existOld2 ? RegDeleteKey(HKEY_LOCAL_MACHINE, oldKeyStr2.toStdWString().c_str()) : ERROR_SUCCESS;
		}

		QString userDesktopLnk, commonDesktopLnk;
		WCHAR userDesktopFolder[MAX_PATH], commonDesktopFolder[MAX_PATH];
		HRESULT userDesktopRes = SHGetFolderPath(0, CSIDL_DESKTOPDIRECTORY, 0, SHGFP_TYPE_CURRENT, userDesktopFolder);
		HRESULT commonDesktopRes = SHGetFolderPath(0, CSIDL_COMMON_DESKTOPDIRECTORY, 0, SHGFP_TYPE_CURRENT, commonDesktopFolder);
		if (SUCCEEDED(userDesktopRes)) {
			userDesktopLnk = QString::fromWCharArray(userDesktopFolder) + "\\Telegram.lnk";
		}
		if (SUCCEEDED(commonDesktopRes)) {
			commonDesktopLnk = QString::fromWCharArray(commonDesktopFolder) + "\\Telegram.lnk";
		}
		QFile userDesktopFile(userDesktopLnk), commonDesktopFile(commonDesktopLnk);
		if (QFile::exists(userDesktopLnk) && QFile::exists(commonDesktopLnk) && userDesktopLnk != commonDesktopLnk) {
			bool removed = QFile::remove(commonDesktopLnk);
		}
	} catch (...) {
	}
}

int psFixPrevious() {
	__try
	{
		psDoFixPrevious();
	}
	__except(EXCEPTION_EXECUTE_HANDLER)
	{
		return 0;
	}
	return 0;
}

void psPostprocessFile(const QString &name) {
	std::wstring zoneFile = QDir::toNativeSeparators(name).toStdWString() + L":Zone.Identifier";
	HANDLE f = CreateFile(zoneFile.c_str(), GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
	if (f == INVALID_HANDLE_VALUE) { // :(
		return;
	}

	const char data[] = "[ZoneTransfer]\r\nZoneId=3\r\n";

	DWORD written = 0;
	BOOL result = WriteFile(f, data, sizeof(data), &written, NULL);
	CloseHandle(f);

	if (!result || written != sizeof(data)) { // :(
		return;
	}
}

namespace {
	struct OpenWithApp {
		OpenWithApp(const QString &name, HBITMAP icon, IAssocHandler *handler) : name(name), icon(icon), handler(handler) {
		}
		OpenWithApp(const QString &name, IAssocHandler *handler) : name(name), icon(0), handler(handler) {
		}
		void destroy() {
			if (icon) DeleteBitmap(icon);
			if (handler) handler->Release();
		}
		QString name;
		HBITMAP icon;
		IAssocHandler *handler;
	};

	bool OpenWithAppLess(const OpenWithApp &a, const OpenWithApp &b) {
		return a.name < b.name;
	}

	HBITMAP _iconToBitmap(LPWSTR icon, int iconindex) {
		if (!icon) return 0;
		WCHAR tmpIcon[4096];
		if (icon[0] == L'@' && SUCCEEDED(SHLoadIndirectString(icon, tmpIcon, 4096, 0))) {
			icon = tmpIcon;
		}
		int32 w = GetSystemMetrics(SM_CXSMICON), h = GetSystemMetrics(SM_CYSMICON);

		HICON ico = ExtractIcon(0, icon, iconindex);
		if (!ico) {
			if (!iconindex) { // try to read image
				QImage img(QString::fromWCharArray(icon));
				if (!img.isNull()) {
					return qt_pixmapToWinHBITMAP(QPixmap::fromImage(img.scaled(w, h, Qt::IgnoreAspectRatio, Qt::SmoothTransformation)), /* HBitmapAlpha */ 2);
				}
			}
			return 0;
		}

		HDC screenDC = GetDC(0), hdc = CreateCompatibleDC(screenDC);
		HBITMAP result = CreateCompatibleBitmap(screenDC, w, h);
		HGDIOBJ was = SelectObject(hdc, result);
		DrawIconEx(hdc, 0, 0, ico, w, h, 0, NULL, DI_NORMAL);
		SelectObject(hdc, was);
		DeleteDC(hdc);
		ReleaseDC(0, screenDC);

		DestroyIcon(ico);

		return (HBITMAP)CopyImage(result, IMAGE_BITMAP, 0, 0, LR_DEFAULTSIZE | LR_CREATEDIBSECTION);
//		return result;
	}
}

bool psShowOpenWithMenu(int x, int y, const QString &file) {
	if (!useOpenWith || !App::wnd()) return false;

	bool result = false;
	QList<OpenWithApp> handlers;
	IShellItem* pItem = nullptr;
	if (SUCCEEDED(shCreateItemFromParsingName(QDir::toNativeSeparators(file).toStdWString().c_str(), nullptr, IID_PPV_ARGS(&pItem)))) {
		IEnumAssocHandlers *assocHandlers = 0;
		if (SUCCEEDED(pItem->BindToHandler(nullptr, BHID_EnumAssocHandlers, IID_PPV_ARGS(&assocHandlers)))) {
			HRESULT hr = S_FALSE;
			do
			{
				IAssocHandler *handler = 0;
				ULONG ulFetched = 0;
				hr = assocHandlers->Next(1, &handler, &ulFetched);
				if (FAILED(hr) || hr == S_FALSE || !ulFetched) break;

				LPWSTR name = 0;
				if (SUCCEEDED(handler->GetUIName(&name))) {
					LPWSTR icon = 0;
					int iconindex = 0;
					if (SUCCEEDED(handler->GetIconLocation(&icon, &iconindex)) && icon) {
						handlers.push_back(OpenWithApp(QString::fromWCharArray(name), _iconToBitmap(icon, iconindex), handler));
						CoTaskMemFree(icon);
					} else {
						handlers.push_back(OpenWithApp(QString::fromWCharArray(name), handler));
					}
					CoTaskMemFree(name);
				} else {
					handler->Release();
				}
			} while (hr != S_FALSE);
			assocHandlers->Release();
		}

		if (!handlers.isEmpty()) {
			HMENU menu = CreatePopupMenu();
			std::sort(handlers.begin(), handlers.end(), OpenWithAppLess);
			for (int32 i = 0, l = handlers.size(); i < l; ++i) {
				MENUITEMINFO menuInfo = { 0 };
				menuInfo.cbSize = sizeof(menuInfo);
				menuInfo.fMask = MIIM_STRING | MIIM_DATA | MIIM_ID;
				menuInfo.fType = MFT_STRING;
				menuInfo.wID = i + 1;
				if (handlers.at(i).icon) {
					menuInfo.fMask |= MIIM_BITMAP;
					menuInfo.hbmpItem = handlers.at(i).icon;
				}

				QString name = handlers.at(i).name;
				if (name.size() > 512) name = name.mid(0, 512);
				WCHAR nameArr[1024];
				name.toWCharArray(nameArr);
				nameArr[name.size()] = 0;
				menuInfo.dwTypeData = nameArr;
				InsertMenuItem(menu, GetMenuItemCount(menu), TRUE, &menuInfo);
			}
			MENUITEMINFO sepInfo = { 0 };
			sepInfo.cbSize = sizeof(sepInfo);
			sepInfo.fMask = MIIM_STRING | MIIM_DATA;
			sepInfo.fType = MFT_SEPARATOR;
			InsertMenuItem(menu, GetMenuItemCount(menu), true, &sepInfo);

			MENUITEMINFO menuInfo = { 0 };
			menuInfo.cbSize = sizeof(menuInfo);
			menuInfo.fMask = MIIM_STRING | MIIM_DATA | MIIM_ID;
			menuInfo.fType = MFT_STRING;
			menuInfo.wID = handlers.size() + 1;

			QString name = lang(lng_wnd_choose_program_menu);
			if (name.size() > 512) name = name.mid(0, 512);
			WCHAR nameArr[1024];
			name.toWCharArray(nameArr);
			nameArr[name.size()] = 0;
			menuInfo.dwTypeData = nameArr;
			InsertMenuItem(menu, GetMenuItemCount(menu), TRUE, &menuInfo);

			int sel = TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_TOPALIGN | TPM_LEFTBUTTON | TPM_RETURNCMD, x, y, 0, App::wnd()->psHwnd(), 0);
			DestroyMenu(menu);

			if (sel > 0) {
				if (sel <= handlers.size()) {
					IDataObject *dataObj = 0;
					if (SUCCEEDED(pItem->BindToHandler(nullptr, BHID_DataObject, IID_PPV_ARGS(&dataObj))) && dataObj) {
						handlers.at(sel - 1).handler->Invoke(dataObj);
						dataObj->Release();
						result = true;
					}
				}
			} else {
				result = true;
			}
			for (int i = 0, l = handlers.size(); i < l; ++i) {
				handlers[i].destroy();
			}
		}

		pItem->Release();
	}
	return result;
}

void psOpenFile(const QString &name, bool openWith) {
	bool mailtoScheme = name.startsWith(qstr("mailto:"));
	std::wstring wname = mailtoScheme ? name.toStdWString() : QDir::toNativeSeparators(name).toStdWString();

	if (openWith && useOpenAs) {
		if (shOpenWithDialog) {
			OPENASINFO info;
			info.oaifInFlags = OAIF_ALLOW_REGISTRATION | OAIF_REGISTER_EXT | OAIF_EXEC;
			if (mailtoScheme) info.oaifInFlags |= OAIF_FILE_IS_URI | OAIF_URL_PROTOCOL;
			info.pcszClass = NULL;
			info.pcszFile = wname.c_str();
			shOpenWithDialog(0, &info);
		} else {
			openAs_RunDLL(0, 0, wname.c_str(), SW_SHOWNORMAL);
		}
	} else {
		ShellExecute(0, L"open", wname.c_str(), 0, 0, SW_SHOWNORMAL);
	}
}

void psShowInFolder(const QString &name) {
	QString nameEscaped = QDir::toNativeSeparators(name).replace('"', qsl("\"\""));
	ShellExecute(0, 0, qsl("explorer").toStdWString().c_str(), (qsl("/select,") + nameEscaped).toStdWString().c_str(), 0, SW_SHOWNORMAL);
}


namespace PlatformSpecific {

	Initializer::Initializer() {
	}

	Initializer::~Initializer() {
		delete _psEventFilter;
		_psEventFilter = 0;

		if (ToastImageSavedFlag) {
			psDeleteDir(cWorkingDir() + qsl("tdata/temp"));
		}
	}

}

namespace {
	void _psLogError(const char *str, LSTATUS code) {
		WCHAR errMsg[2048];
		LPTSTR errorText = NULL, errorTextDefault = L"(Unknown error)";
		FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&errorText, 0, 0);
		if (!errorText) {
			errorText = errorTextDefault;
		}
		LOG((str).arg(code).arg(QString::fromStdWString(errorText)));
		if (errorText != errorTextDefault) {
			LocalFree(errorText);
		}
	}

	bool _psOpenRegKey(LPCWSTR key, PHKEY rkey) {
		DEBUG_LOG(("App Info: opening reg key %1..").arg(QString::fromStdWString(key)));
		LSTATUS status = RegOpenKeyEx(HKEY_CURRENT_USER, key, 0, KEY_QUERY_VALUE | KEY_WRITE, rkey);
		if (status != ERROR_SUCCESS) {
			if (status == ERROR_FILE_NOT_FOUND) {
				status = RegCreateKeyEx(HKEY_CURRENT_USER, key, 0, 0, REG_OPTION_NON_VOLATILE, KEY_QUERY_VALUE | KEY_WRITE, 0, rkey, 0);
				if (status != ERROR_SUCCESS) {
					QString msg = qsl("App Error: could not create '%1' registry key, error %2").arg(QString::fromStdWString(key)).arg(qsl("%1: %2"));
					_psLogError(msg.toUtf8().constData(), status);
					return false;
				}
			} else {
				QString msg = qsl("App Error: could not open '%1' registry key, error %2").arg(QString::fromStdWString(key)).arg(qsl("%1: %2"));
				_psLogError(msg.toUtf8().constData(), status);
				return false;
			}
		}
		return true;
	}

	bool _psSetKeyValue(HKEY rkey, LPCWSTR value, QString v) {
		static const int bufSize = 4096;
		DWORD defaultType, defaultSize = bufSize * 2;
		WCHAR defaultStr[bufSize] = { 0 };
		if (RegQueryValueEx(rkey, value, 0, &defaultType, (BYTE*)defaultStr, &defaultSize) != ERROR_SUCCESS || defaultType != REG_SZ || defaultSize != (v.size() + 1) * 2 || QString::fromStdWString(defaultStr) != v) {
			WCHAR tmp[bufSize] = { 0 };
			if (!v.isEmpty()) wsprintf(tmp, v.replace(QChar('%'), qsl("%%")).toStdWString().c_str());
			LSTATUS status = RegSetValueEx(rkey, value, 0, REG_SZ, (BYTE*)tmp, (wcslen(tmp) + 1) * sizeof(WCHAR));
			if (status != ERROR_SUCCESS) {
				QString msg = qsl("App Error: could not set %1, error %2").arg(value ? ('\'' + QString::fromStdWString(value) + '\'') : qsl("(Default)")).arg("%1: %2");
				_psLogError(msg.toUtf8().constData(), status);
				return false;
			}
		}
		return true;
	}
}

void RegisterCustomScheme() {
	#ifndef TDESKTOP_DISABLE_REGISTER_CUSTOM_SCHEME
	DEBUG_LOG(("App Info: Checking custom scheme 'tg'.."));

	HKEY rkey;
	QString exe = QDir::toNativeSeparators(cExeDir() + cExeName());

	if (!_psOpenRegKey(L"Software\\Classes\\tg", &rkey)) return;
	if (!_psSetKeyValue(rkey, L"URL Protocol", QString())) return;
	if (!_psSetKeyValue(rkey, 0, qsl("URL:Telegram Link"))) return;

	if (!_psOpenRegKey(L"Software\\Classes\\tg\\DefaultIcon", &rkey)) return;
	if (!_psSetKeyValue(rkey, 0, '"' + exe + qsl(",1\""))) return;

	if (!_psOpenRegKey(L"Software\\Classes\\tg\\shell", &rkey)) return;
	if (!_psOpenRegKey(L"Software\\Classes\\tg\\shell\\open", &rkey)) return;
	if (!_psOpenRegKey(L"Software\\Classes\\tg\\shell\\open\\command", &rkey)) return;
	if (!_psSetKeyValue(rkey, 0, '"' + exe + qsl("\" -workdir \"") + cWorkingDir() + qsl("\" -- \"%1\""))) return;
	#endif
}

void psNewVersion() {
	RegisterCustomScheme();
	if (Local::oldSettingsVersion() < 8051) {
		CheckPinnedAppUserModelId();
	}
}

void psExecUpdater() {
	QString targs = qsl("-update");
	if (cLaunchMode() == LaunchModeAutoStart) targs += qsl(" -autostart");
	if (cDebug()) targs += qsl(" -debug");
	if (cStartInTray()) targs += qsl(" -startintray");
	if (cWriteProtected()) targs += qsl(" -writeprotected \"") + cExeDir() + '"';

	QString updaterPath = cWriteProtected() ? (cWorkingDir() + qsl("tupdates/temp/Updater.exe")) : (cExeDir() + qsl("Updater.exe"));

	QString updater(QDir::toNativeSeparators(updaterPath)), wdir(QDir::toNativeSeparators(cWorkingDir()));

	DEBUG_LOG(("Application Info: executing %1 %2").arg(cExeDir() + "Updater.exe").arg(targs));
	HINSTANCE r = ShellExecute(0, cWriteProtected() ? L"runas" : 0, updater.toStdWString().c_str(), targs.toStdWString().c_str(), wdir.isEmpty() ? 0 : wdir.toStdWString().c_str(), SW_SHOWNORMAL);
	if (long(r) < 32) {
		DEBUG_LOG(("Application Error: failed to execute %1, working directory: '%2', result: %3").arg(updater).arg(wdir).arg(long(r)));
		psDeleteDir(cWorkingDir() + qsl("tupdates/temp"));
	}
}

void psExecTelegram() {
	QString targs = qsl("-noupdate");
	if (cRestartingToSettings()) targs += qsl(" -tosettings");
	if (cLaunchMode() == LaunchModeAutoStart) targs += qsl(" -autostart");
	if (cDebug()) targs += qsl(" -debug");
	if (cStartInTray()) targs += qsl(" -startintray");
	if (cTestMode()) targs += qsl(" -testmode");
	if (cDataFile() != qsl("data")) targs += qsl(" -key \"") + cDataFile() + '"';

	QString telegram(QDir::toNativeSeparators(cExeDir() + cExeName())), wdir(QDir::toNativeSeparators(cWorkingDir()));

	DEBUG_LOG(("Application Info: executing %1 %2").arg(cExeDir() + cExeName()).arg(targs));
	HINSTANCE r = ShellExecute(0, 0, telegram.toStdWString().c_str(), targs.toStdWString().c_str(), wdir.isEmpty() ? 0 : wdir.toStdWString().c_str(), SW_SHOWNORMAL);
	if (long(r) < 32) {
		DEBUG_LOG(("Application Error: failed to execute %1, working directory: '%2', result: %3").arg(telegram).arg(wdir).arg(long(r)));
	}
}

void _manageAppLnk(bool create, bool silent, int path_csidl, const wchar_t *args, const wchar_t *description) {
	WCHAR startupFolder[MAX_PATH];
	HRESULT hr = SHGetFolderPath(0, path_csidl, 0, SHGFP_TYPE_CURRENT, startupFolder);
	if (SUCCEEDED(hr)) {
		QString lnk = QString::fromWCharArray(startupFolder) + '\\' + QString::fromWCharArray(AppFile) + qsl(".lnk");
		if (create) {
			ComPtr<IShellLink> shellLink;
			hr = CoCreateInstance(CLSID_ShellLink, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&shellLink));
			if (SUCCEEDED(hr)) {
				ComPtr<IPersistFile> persistFile;

				QString exe = QDir::toNativeSeparators(cExeDir() + cExeName()), dir = QDir::toNativeSeparators(QDir(cWorkingDir()).absolutePath());
				shellLink->SetArguments(args);
				shellLink->SetPath(exe.toStdWString().c_str());
				shellLink->SetWorkingDirectory(dir.toStdWString().c_str());
				shellLink->SetDescription(description);

				ComPtr<IPropertyStore> propertyStore;
				hr = shellLink.As(&propertyStore);
				if (SUCCEEDED(hr)) {
					PROPVARIANT appIdPropVar;
					hr = InitPropVariantFromString(AppUserModelId(), &appIdPropVar);
					if (SUCCEEDED(hr)) {
						hr = propertyStore->SetValue(pkey_AppUserModel_ID, appIdPropVar);
						PropVariantClear(&appIdPropVar);
						if (SUCCEEDED(hr)) {
							hr = propertyStore->Commit();
						}
					}
				}

				hr = shellLink.As(&persistFile);
				if (SUCCEEDED(hr)) {
					hr = persistFile->Save(lnk.toStdWString().c_str(), TRUE);
				} else {
					if (!silent) LOG(("App Error: could not create interface IID_IPersistFile %1").arg(hr));
				}
			} else {
				if (!silent) LOG(("App Error: could not create instance of IID_IShellLink %1").arg(hr));
			}
		} else {
			QFile::remove(lnk);
		}
	} else {
		if (!silent) LOG(("App Error: could not get CSIDL %1 folder %2").arg(path_csidl).arg(hr));
	}
}

void psAutoStart(bool start, bool silent) {
	_manageAppLnk(start, silent, CSIDL_STARTUP, L"-autostart", L"Telegram autorun link.\nYou can disable autorun in Telegram settings.");
}

void psSendToMenu(bool send, bool silent) {
	_manageAppLnk(send, silent, CSIDL_SENDTO, L"-sendpath", L"Telegram send to link.\nYou can disable send to menu item in Telegram settings.");
}

void psUpdateOverlayed(TWidget *widget) {
	bool wm = widget->testAttribute(Qt::WA_Mapped), wv = widget->testAttribute(Qt::WA_WState_Visible);
	if (!wm) widget->setAttribute(Qt::WA_Mapped, true);
	if (!wv) widget->setAttribute(Qt::WA_WState_Visible, true);
	widget->update();
	QEvent e(QEvent::UpdateRequest);
	widget->event(&e);
	if (!wm) widget->setAttribute(Qt::WA_Mapped, false);
	if (!wv) widget->setAttribute(Qt::WA_WState_Visible, false);
}

static const WCHAR *_programName = AppName; // folder in APPDATA, if current path is unavailable for writing
static const WCHAR *_exeName = L"Telegram.exe";

LPTOP_LEVEL_EXCEPTION_FILTER _oldWndExceptionFilter = 0;

typedef BOOL (FAR STDAPICALLTYPE *t_miniDumpWriteDump)(
    _In_ HANDLE hProcess,
    _In_ DWORD ProcessId,
    _In_ HANDLE hFile,
    _In_ MINIDUMP_TYPE DumpType,
    _In_opt_ PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam,
    _In_opt_ PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam,
    _In_opt_ PMINIDUMP_CALLBACK_INFORMATION CallbackParam
);
t_miniDumpWriteDump miniDumpWriteDump = 0;

// Stack walk code is inspired by http://www.codeproject.com/Articles/11132/Walking-the-callstack

static const int StackEntryMaxNameLength = MAX_SYM_NAME + 1;

typedef BOOL(FAR STDAPICALLTYPE *t_SymCleanup)(
	_In_ HANDLE hProcess
);
t_SymCleanup symCleanup = 0;

typedef PVOID (FAR STDAPICALLTYPE *t_SymFunctionTableAccess64)(
    _In_ HANDLE hProcess,
    _In_ DWORD64 AddrBase
);
t_SymFunctionTableAccess64 symFunctionTableAccess64 = 0;

typedef BOOL (FAR STDAPICALLTYPE *t_SymGetLineFromAddr64)(
    _In_ HANDLE hProcess,
    _In_ DWORD64 dwAddr,
    _Out_ PDWORD pdwDisplacement,
    _Out_ PIMAGEHLP_LINEW64 Line
);
t_SymGetLineFromAddr64 symGetLineFromAddr64 = 0;

typedef DWORD64 (FAR STDAPICALLTYPE *t_SymGetModuleBase64)(
    _In_ HANDLE hProcess,
    _In_ DWORD64 qwAddr
);
t_SymGetModuleBase64 symGetModuleBase64 = 0;

typedef BOOL (FAR STDAPICALLTYPE *t_SymGetModuleInfo64)(
    _In_ HANDLE hProcess,
    _In_ DWORD64 qwAddr,
    _Out_ PIMAGEHLP_MODULEW64 ModuleInfo
);
t_SymGetModuleInfo64 symGetModuleInfo64 = 0;

typedef DWORD (FAR STDAPICALLTYPE *t_SymGetOptions)(
	VOID
);
t_SymGetOptions symGetOptions = 0;

typedef DWORD (FAR STDAPICALLTYPE *t_SymSetOptions)(
    _In_ DWORD SymOptions
);
t_SymSetOptions symSetOptions = 0;

typedef BOOL (FAR STDAPICALLTYPE *t_SymGetSymFromAddr64)(
	IN HANDLE hProcess,
	IN DWORD64 dwAddr,
	OUT PDWORD64 pdwDisplacement,
	OUT PIMAGEHLP_SYMBOL64 Symbol
);
t_SymGetSymFromAddr64 symGetSymFromAddr64 = 0;

typedef BOOL (FAR STDAPICALLTYPE *t_SymInitialize)(
	_In_ HANDLE hProcess,
	_In_opt_ PCWSTR UserSearchPath,
	_In_ BOOL fInvadeProcess
);
t_SymInitialize symInitialize = 0;

typedef DWORD64 (FAR STDAPICALLTYPE *t_SymLoadModule64)(
	_In_ HANDLE hProcess,
	_In_opt_ HANDLE hFile,
	_In_opt_ PCSTR ImageName,
	_In_opt_ PCSTR ModuleName,
	_In_ DWORD64 BaseOfDll,
	_In_ DWORD SizeOfDll
);
t_SymLoadModule64 symLoadModule64;

typedef BOOL (FAR STDAPICALLTYPE *t_StackWalk64)(
	_In_ DWORD MachineType,
	_In_ HANDLE hProcess,
	_In_ HANDLE hThread,
	_Inout_ LPSTACKFRAME64 StackFrame,
	_Inout_ PVOID ContextRecord,
	_In_opt_ PREAD_PROCESS_MEMORY_ROUTINE64 ReadMemoryRoutine,
	_In_opt_ PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine,
	_In_opt_ PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine,
	_In_opt_ PTRANSLATE_ADDRESS_ROUTINE64 TranslateAddress
);
t_StackWalk64 stackWalk64 = 0;

typedef DWORD (FAR STDAPICALLTYPE *t_UnDecorateSymbolName)(
	PCSTR DecoratedName,
	PSTR UnDecoratedName,
	DWORD UndecoratedLength,
	DWORD Flags
);
t_UnDecorateSymbolName unDecorateSymbolName = 0;

typedef BOOL(FAR STDAPICALLTYPE *t_SymGetSearchPath)(
	_In_ HANDLE hProcess,
	_Out_writes_(SearchPathLength) PWSTR SearchPath,
	_In_ DWORD SearchPathLength
);
t_SymGetSearchPath symGetSearchPath = 0;

BOOL __stdcall ReadProcessMemoryRoutine64(
	_In_ HANDLE hProcess,
	_In_ DWORD64 qwBaseAddress,
	_Out_writes_bytes_(nSize) PVOID lpBuffer,
	_In_ DWORD nSize,
	_Out_ LPDWORD lpNumberOfBytesRead
) {
	SIZE_T st;
	BOOL bRet = ReadProcessMemory(hProcess, (LPVOID)qwBaseAddress, lpBuffer, nSize, &st);
	*lpNumberOfBytesRead = (DWORD)st;

	return bRet;
}

HANDLE _generateDumpFileAtPath(const WCHAR *path) {
	static const int maxFileLen = MAX_PATH * 10;

	WCHAR szPath[maxFileLen];
	wsprintf(szPath, L"%stdumps\\", path);

    if (!CreateDirectory(szPath, NULL)) {
		DWORD errCode = GetLastError();
		if (errCode && errCode != ERROR_ALREADY_EXISTS) {
			return 0;
		}
	}

	WCHAR szFileName[maxFileLen];
	WCHAR szExeName[maxFileLen];

	wcscpy_s(szExeName, _exeName);
	WCHAR *dotFrom = wcschr(szExeName, WCHAR(L'.'));
	if (dotFrom) {
		wsprintf(dotFrom, L"");
	}

    SYSTEMTIME stLocalTime;

    GetLocalTime(&stLocalTime);

	if (cBetaVersion()) {
		wsprintf(szFileName, L"%s%s-%ld-%04d%02d%02d-%02d%02d%02d-%ld-%ld.dmp",
				 szPath, szExeName, cBetaVersion(),
				 stLocalTime.wYear, stLocalTime.wMonth, stLocalTime.wDay,
				 stLocalTime.wHour, stLocalTime.wMinute, stLocalTime.wSecond,
				 GetCurrentProcessId(), GetCurrentThreadId());
	} else {
		wsprintf(szFileName, L"%s%s-%s-%04d%02d%02d-%02d%02d%02d-%ld-%ld.dmp",
				 szPath, szExeName, AppVersionStr,
				 stLocalTime.wYear, stLocalTime.wMonth, stLocalTime.wDay,
				 stLocalTime.wHour, stLocalTime.wMinute, stLocalTime.wSecond,
				 GetCurrentProcessId(), GetCurrentThreadId());
	}
    return CreateFile(szFileName, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_WRITE|FILE_SHARE_READ, 0, CREATE_ALWAYS, 0, 0);
}

// **************************************** ToolHelp32 ************************
#define MAX_MODULE_NAME32 255
#define TH32CS_SNAPMODULE   0x00000008
#pragma pack( push, 8 )
typedef struct tagMODULEENTRY32
{
	DWORD   dwSize;
	DWORD   th32ModuleID;       // This module
	DWORD   th32ProcessID;      // owning process
	DWORD   GlblcntUsage;       // Global usage count on the module
	DWORD   ProccntUsage;       // Module usage count in th32ProcessID's context
	BYTE  * modBaseAddr;        // Base address of module in th32ProcessID's context
	DWORD   modBaseSize;        // Size in bytes of module starting at modBaseAddr
	HMODULE hModule;            // The hModule of this module in th32ProcessID's context
	char    szModule[MAX_MODULE_NAME32 + 1];
	char    szExePath[MAX_PATH];
} MODULEENTRY32;
typedef MODULEENTRY32 *PMODULEENTRY32;
typedef MODULEENTRY32 *LPMODULEENTRY32;
#pragma pack( pop )

typedef HANDLE (FAR STDAPICALLTYPE *t_CreateToolhelp32Snapshot)(DWORD dwFlags, DWORD th32ProcessID);
t_CreateToolhelp32Snapshot createToolhelp32Snapshot = 0;

typedef BOOL (FAR STDAPICALLTYPE *t_Module32First)(HANDLE hSnapshot, LPMODULEENTRY32 lpme);
t_Module32First module32First = 0;

typedef BOOL (FAR STDAPICALLTYPE *t_Module32Next)(HANDLE hSnapshot, LPMODULEENTRY32 lpme);
t_Module32Next module32Next = 0;

bool LoadDbgHelp(bool extended = false) {
	if (miniDumpWriteDump && (!extended || symInitialize)) return true;

	HMODULE hDll = 0;

	WCHAR szTemp[4096];
	if (GetModuleFileName(NULL, szTemp, 4096) > 0) {
		wcscat(szTemp, L".local");
		if (GetFileAttributes(szTemp) == INVALID_FILE_ATTRIBUTES) {
			// ".local" file does not exist, so we can try to load the dbghelp.dll from the "Debugging Tools for Windows"
			if (GetEnvironmentVariable(L"ProgramFiles", szTemp, 4096) > 0) {
				wcscat(szTemp, L"\\Debugging Tools for Windows\\dbghelp.dll");
				// now check if the file exists:
				if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES) {
					hDll = LoadLibrary(szTemp);
				}
			}
			// Still not found? Then try to load the 64-Bit version:
			if (!hDll && (GetEnvironmentVariable(L"ProgramFiles", szTemp, 4096) > 0)) {
				wcscat(szTemp, L"\\Debugging Tools for Windows 64-Bit\\dbghelp.dll");
				if (GetFileAttributes(szTemp) != INVALID_FILE_ATTRIBUTES) {
					hDll = LoadLibrary(szTemp);
				}
			}
		}
	}
	if (!hDll) {
		hDll = LoadLibrary(L"DBGHELP.DLL");
	}

	if (!hDll) return false;

	miniDumpWriteDump = (t_miniDumpWriteDump)GetProcAddress(hDll, "MiniDumpWriteDump");

	stackWalk64 = (t_StackWalk64)GetProcAddress(hDll, "StackWalk64");
	symFunctionTableAccess64 = (t_SymFunctionTableAccess64)GetProcAddress(hDll, "SymFunctionTableAccess64");
	symGetModuleBase64 = (t_SymGetModuleBase64)GetProcAddress(hDll, "SymGetModuleBase64");

	if (!miniDumpWriteDump ||
		!stackWalk64 ||
		!symFunctionTableAccess64 ||
		!symGetModuleBase64) {
		miniDumpWriteDump = 0;
		return false;
	}

	if (extended) {
		HANDLE hProcess = GetCurrentProcess();
		DWORD dwProcessId = GetCurrentProcessId();

		symGetLineFromAddr64 = (t_SymGetLineFromAddr64)GetProcAddress(hDll, "SymGetLineFromAddrW64");
		symGetModuleInfo64 = (t_SymGetModuleInfo64)GetProcAddress(hDll, "SymGetModuleInfoW64");
		symGetSymFromAddr64 = (t_SymGetSymFromAddr64)GetProcAddress(hDll, "SymGetSymFromAddr64");
		unDecorateSymbolName = (t_UnDecorateSymbolName)GetProcAddress(hDll, "UnDecorateSymbolName");
		symInitialize = (t_SymInitialize)GetProcAddress(hDll, "SymInitializeW");
		symCleanup = (t_SymCleanup)GetProcAddress(hDll, "SymCleanup");
		symGetSearchPath = (t_SymGetSearchPath)GetProcAddress(hDll, "SymGetSearchPathW");
		symGetOptions = (t_SymGetOptions)GetProcAddress(hDll, "SymGetOptions");
		symSetOptions = (t_SymSetOptions)GetProcAddress(hDll, "SymSetOptions");
		symLoadModule64 = (t_SymLoadModule64)GetProcAddress(hDll, "SymLoadModule64");
		if (!symGetModuleInfo64 ||
			!symGetLineFromAddr64 ||
			!symGetSymFromAddr64 ||
			!unDecorateSymbolName ||
			!symInitialize ||
			!symCleanup ||
			!symGetOptions ||
			!symSetOptions ||
			!symLoadModule64) {
			symInitialize = 0;
			return false;
		}

		const size_t nSymPathLen = 10 * MAX_PATH;
		WCHAR szSymPath[nSymPathLen] = { 0 };

		wcscat_s(szSymPath, nSymPathLen, L".;..;");

		WCHAR szTemp[MAX_PATH + 1] = { 0 };
		if (GetCurrentDirectory(MAX_PATH, szTemp) > 0)	{
			wcscat_s(szSymPath, nSymPathLen, szTemp);
			wcscat_s(szSymPath, nSymPathLen, L";");
		}

		if (GetModuleFileName(NULL, szTemp, MAX_PATH) > 0) {
			for (WCHAR *p = (szTemp + wcslen(szTemp) - 1); p >= szTemp; --p) {
				if ((*p == '\\') || (*p == '/') || (*p == ':'))	{
					*p = 0;
					break;
				}
			}
			if (wcslen(szTemp) > 0)	{
				wcscat_s(szSymPath, nSymPathLen, szTemp);
				wcscat_s(szSymPath, nSymPathLen, L";");
			}
		}
		if (GetEnvironmentVariable(L"_NT_SYMBOL_PATH", szTemp, MAX_PATH) > 0) {
			wcscat_s(szSymPath, nSymPathLen, szTemp);
			wcscat_s(szSymPath, nSymPathLen, L";");
		}
		if (GetEnvironmentVariable(L"_NT_ALTERNATE_SYMBOL_PATH", szTemp, MAX_PATH) > 0) {
			wcscat_s(szSymPath, nSymPathLen, szTemp);
			wcscat_s(szSymPath, nSymPathLen, L";");
		}
		if (GetEnvironmentVariable(L"SYSTEMROOT", szTemp, MAX_PATH) > 0) {
			wcscat_s(szSymPath, nSymPathLen, szTemp);
			wcscat_s(szSymPath, nSymPathLen, L";");

			// also add the "system32"-directory:
			wcscat_s(szTemp, MAX_PATH, L"\\system32");
			wcscat_s(szSymPath, nSymPathLen, szTemp);
			wcscat_s(szSymPath, nSymPathLen, L";");
		}

		if (GetEnvironmentVariable(L"SYSTEMDRIVE", szTemp, MAX_PATH) > 0) {
			wcscat_s(szSymPath, nSymPathLen, L"SRV*");
			wcscat_s(szSymPath, nSymPathLen, szTemp);
			wcscat_s(szSymPath, nSymPathLen, L"\\websymbols*http://msdl.microsoft.com/download/symbols;");
		} else {
			wcscat_s(szSymPath, nSymPathLen, L"SRV*c:\\websymbols*http://msdl.microsoft.com/download/symbols;");
		}

		if (symInitialize(hProcess, szSymPath, FALSE) == FALSE) {
			symInitialize = 0;
			return false;
		}

		DWORD symOptions = symGetOptions();
		symOptions |= SYMOPT_LOAD_LINES;
		symOptions |= SYMOPT_FAIL_CRITICAL_ERRORS;
		symOptions = symSetOptions(symOptions);

		//WCHAR buf[StackEntryMaxNameLength] = { 0 };
		//if (symGetSearchPath) {
		//	if (symGetSearchPath(hProcess, buf, StackEntryMaxNameLength) == FALSE) {
		//		return false;
		//	}
		//}

		//WCHAR szUserName[1024] = { 0 };
		//DWORD dwSize = 1024;
		//GetUserName(szUserName, &dwSize);

		const WCHAR *dllname[] = { L"kernel32.dll",  L"tlhelp32.dll" };
		HINSTANCE hToolhelp = NULL;

		HANDLE hSnap;
		MODULEENTRY32 me;
		me.dwSize = sizeof(me);
		BOOL keepGoing;
		size_t i;

		for (i = 0; i < (sizeof(dllname) / sizeof(dllname[0])); i++) {
			hToolhelp = LoadLibrary(dllname[i]);
			if (!hToolhelp) continue;

			createToolhelp32Snapshot = (t_CreateToolhelp32Snapshot)GetProcAddress(hToolhelp, "CreateToolhelp32Snapshot");
			module32First = (t_Module32First)GetProcAddress(hToolhelp, "Module32First");
			module32Next = (t_Module32Next)GetProcAddress(hToolhelp, "Module32Next");
			if (createToolhelp32Snapshot && module32First && module32Next) {
				break; // found the functions!
			}
			FreeLibrary(hToolhelp);
			hToolhelp = NULL;
		}

		if (hToolhelp == NULL) {
			return false;
		}

		hSnap = createToolhelp32Snapshot(TH32CS_SNAPMODULE, dwProcessId);
		if (hSnap == (HANDLE)-1)
			return FALSE;

		keepGoing = !!module32First(hSnap, &me);
		int cnt = 0;
		while (keepGoing) {
			symLoadModule64(hProcess, 0, me.szExePath, me.szModule, (DWORD64)me.modBaseAddr, me.modBaseSize);
			++cnt;
			keepGoing = !!module32Next(hSnap, &me);
		}
		CloseHandle(hSnap);
		FreeLibrary(hToolhelp);

		return (cnt > 0);
	}

	return true;
}

void _generateDump(EXCEPTION_POINTERS* pExceptionPointers) {
	static const int maxFileLen = MAX_PATH * 10;

	if (!LoadDbgHelp()) return;

	HANDLE hDumpFile = 0;

	WCHAR szPath[maxFileLen];
	DWORD len = GetModuleFileName(GetModuleHandle(0), szPath, maxFileLen);
	if (!len) return;

	WCHAR *pathEnd = szPath  + len;

	if (!_wcsicmp(pathEnd - wcslen(_exeName), _exeName)) {
		wsprintf(pathEnd - wcslen(_exeName), L"");
		hDumpFile = _generateDumpFileAtPath(szPath);
	}
	if (!hDumpFile || hDumpFile == INVALID_HANDLE_VALUE) {
		WCHAR wstrPath[maxFileLen];
		DWORD wstrPathLen;
		if (wstrPathLen = GetEnvironmentVariable(L"APPDATA", wstrPath, maxFileLen)) {
			wsprintf(wstrPath + wstrPathLen, L"\\%s\\", _programName);
			hDumpFile = _generateDumpFileAtPath(wstrPath);
		}
	}

	if (!hDumpFile || hDumpFile == INVALID_HANDLE_VALUE) {
		return;
	}

	MINIDUMP_EXCEPTION_INFORMATION ExpParam = {0};
    ExpParam.ThreadId = GetCurrentThreadId();
    ExpParam.ExceptionPointers = pExceptionPointers;
    ExpParam.ClientPointers = TRUE;

    miniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hDumpFile, MiniDumpWithDataSegs, &ExpParam, NULL, NULL);
}

LONG CALLBACK _exceptionFilter(EXCEPTION_POINTERS* pExceptionPointers) {
	_generateDump(pExceptionPointers);
	return _oldWndExceptionFilter ? (*_oldWndExceptionFilter)(pExceptionPointers) : EXCEPTION_CONTINUE_SEARCH;
}

// see http://www.codeproject.com/Articles/154686/SetUnhandledExceptionFilter-and-the-C-C-Runtime-Li
LPTOP_LEVEL_EXCEPTION_FILTER WINAPI RedirectedSetUnhandledExceptionFilter(_In_opt_ LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter) {
	// When the CRT calls SetUnhandledExceptionFilter with NULL parameter
	// our handler will not get removed.
	_oldWndExceptionFilter = lpTopLevelExceptionFilter;
	return 0;
}

struct StackEntry {
	DWORD64 offset;  // if 0, we have no valid entry
	CHAR name[StackEntryMaxNameLength];
	CHAR undName[StackEntryMaxNameLength];
	CHAR undFullName[StackEntryMaxNameLength];
	DWORD64 offsetFromSmybol;
	DWORD offsetFromLine;
	DWORD lineNumber;
	WCHAR lineFileName[StackEntryMaxNameLength];
	DWORD symType;
	LPCSTR symTypeString;
	WCHAR moduleName[StackEntryMaxNameLength];
	DWORD64 baseOfImage;
	WCHAR loadedImageName[StackEntryMaxNameLength];
};

enum StackEntryType {
	StackEntryFirst,
	StackEntryNext,
	StackEntryLast,
};

char GetModuleInfoData[2 * sizeof(IMAGEHLP_MODULEW64)];
BOOL _getModuleInfo(HANDLE hProcess, DWORD64 baseAddr, IMAGEHLP_MODULEW64 *pModuleInfo) {
	pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULEW64);

	memcpy(GetModuleInfoData, pModuleInfo, sizeof(IMAGEHLP_MODULEW64));
	if (symGetModuleInfo64(hProcess, baseAddr, (IMAGEHLP_MODULEW64*)GetModuleInfoData) != FALSE) {
		// only copy as much memory as is reserved...
		memcpy(pModuleInfo, GetModuleInfoData, sizeof(IMAGEHLP_MODULEW64));
		pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULEW64);
		return TRUE;
	}
	return FALSE;
}

void psWriteDump() {
	OSVERSIONINFOEXA version;
	ZeroMemory(&version, sizeof(OSVERSIONINFOEXA));
	version.dwOSVersionInfoSize = sizeof(version);
	if (GetVersionExA((OSVERSIONINFOA*)&version) != FALSE) {
		SignalHandlers::dump() << "OS-Version: " << version.dwMajorVersion << "." << version.dwMinorVersion << "." << version.dwBuildNumber << "\n";
	}
}

char ImageHlpSymbol64[sizeof(IMAGEHLP_SYMBOL64) + StackEntryMaxNameLength];
QString _showCrashDump(const QByteArray &crashdump) {
	HANDLE hProcess = GetCurrentProcess();

	QString initial = QString::fromUtf8(crashdump), result;
	QStringList lines = initial.split('\n');
	result.reserve(initial.size());
	int32 i = 0, l = lines.size();
	QString versionstr;
	uint64 version = 0, betaversion = 0;
	for (;  i < l; ++i) {
		result.append(lines.at(i)).append('\n');
		QString line = lines.at(i).trimmed();
		if (line.startsWith(qstr("Version: "))) {
			versionstr = line.mid(qstr("Version: ").size()).trimmed();
			version = versionstr.toULongLong();
			if (versionstr.endsWith(qstr("beta"))) {
				if (version % 1000) {
					betaversion = version;
				} else {
					version /= 1000;
				}
			}
			break;
		}
	}

	// maybe need to launch another executable
	QString tolaunch;
	if ((betaversion && betaversion != cBetaVersion()) || (!betaversion && version && version != AppVersion)) {
		QString path = cExeDir();
		QRegularExpressionMatch m = QRegularExpression("deploy/\\d+\\.\\d+/\\d+\\.\\d+\\.\\d+(/|\\.dev/|_\\d+/)(Telegram/)?$").match(path);
		if (m.hasMatch()) {
			QString base = path.mid(0, m.capturedStart()) + qstr("deploy/");
			int32 major = version / 1000000, minor = (version % 1000000) / 1000, micro = (version % 1000);
			base += qsl("%1.%2/%3.%4.%5").arg(major).arg(minor).arg(major).arg(minor).arg(micro);
			if (betaversion) {
				base += qsl("_%1").arg(betaversion);
			} else if (QDir(base + qstr(".dev")).exists()) {
				base += qstr(".dev");
			}
			if (QFile(base + qstr("/Telegram/Telegram.exe")).exists()) {
				base += qstr("/Telegram");
			}
			tolaunch = base + qstr("Telegram.exe");
		}
	}
	if (!tolaunch.isEmpty()) {
		if (QFile(tolaunch).exists()) {
			// run it
			return QString();
		} else {
			result.append(qsl("ERROR: executable '%1' for this crashdump was not found!").arg(tolaunch));
		}
	}

	while (i < l) {
		for (; i < l; ++i) {
			result.append(lines.at(i)).append('\n');
			QString line = lines.at(i).trimmed();
			if (line == qstr("Backtrace:")) {
				++i;
				break;
			}
		}

		IMAGEHLP_SYMBOL64 *pSym = NULL;
		IMAGEHLP_MODULEW64 Module;
		IMAGEHLP_LINEW64 Line;

		pSym = (IMAGEHLP_SYMBOL64*)ImageHlpSymbol64;
		memset(pSym, 0, sizeof(IMAGEHLP_SYMBOL64) + StackEntryMaxNameLength);
		pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
		pSym->MaxNameLength = StackEntryMaxNameLength;

		memset(&Line, 0, sizeof(Line));
		Line.SizeOfStruct = sizeof(Line);

		memset(&Module, 0, sizeof(Module));
		Module.SizeOfStruct = sizeof(Module);

		StackEntry csEntry;
		for (int32 start = i; i < l; ++i) {
			QString line = lines.at(i).trimmed();
			if (line.isEmpty()) break;

			result.append(qsl("%1. ").arg(i + 1 - start));
			if (!QRegularExpression(qsl("^\\d+$")).match(line).hasMatch()) {
				if (!lines.at(i).startsWith(qstr("ERROR: "))) {
					result.append(qstr("BAD LINE: "));
				}
				result.append(line).append('\n');
				continue;
			}

			DWORD64 address = line.toULongLong();

			csEntry.offset = address;
			csEntry.name[0] = 0;
			csEntry.undName[0] = 0;
			csEntry.undFullName[0] = 0;
			csEntry.offsetFromSmybol = 0;
			csEntry.offsetFromLine = 0;
			csEntry.lineFileName[0] = 0;
			csEntry.lineNumber = 0;
			csEntry.loadedImageName[0] = 0;
			csEntry.moduleName[0] = 0;

			if (symGetSymFromAddr64(hProcess, address, &(csEntry.offsetFromSmybol), pSym) != FALSE) {
				// TODO: Mache dies sicher...!
				strcpy_s(csEntry.name, pSym->Name);

				unDecorateSymbolName(pSym->Name, csEntry.undName, StackEntryMaxNameLength, UNDNAME_NAME_ONLY);
				unDecorateSymbolName(pSym->Name, csEntry.undFullName, StackEntryMaxNameLength, UNDNAME_COMPLETE);

				if (symGetLineFromAddr64) {
					if (symGetLineFromAddr64(hProcess, address, &(csEntry.offsetFromLine), &Line) != FALSE) {
						csEntry.lineNumber = Line.LineNumber;

						// TODO: Mache dies sicher...!
						wcscpy_s(csEntry.lineFileName, Line.FileName);
					}
				}
			} else {
				result.append("ERROR: could not get Sym from Addr! for ").append(QString::number(address)).append('\n');
				continue;
			}

			if (_getModuleInfo(hProcess, address, &Module) != FALSE) {
				// TODO: Mache dies sicher...!
				wcscpy_s(csEntry.moduleName, Module.ModuleName);
			}
			if (csEntry.name[0] == 0) {
				strcpy_s(csEntry.name, "(function-name not available)");
			}
			if (csEntry.undName[0] != 0) {
				strcpy_s(csEntry.name, csEntry.undName);
			}
			if (csEntry.undFullName[0] != 0) {
				strcpy_s(csEntry.name, csEntry.undFullName);
			}
			if (csEntry.lineFileName[0] == 0) {
				if (csEntry.moduleName[0] == 0) {
					wcscpy_s(csEntry.moduleName, L"module-name not available");
				}
				result.append(csEntry.name).append(qsl(" (%1) 0x%3").arg(QString::fromWCharArray(csEntry.moduleName)).arg(address, 0, 16)).append('\n');
			} else {
				QString file = QString::fromWCharArray(csEntry.lineFileName).toLower();
				int32 index = file.indexOf(qstr("tbuild\\tdesktop\\telegram\\"));
				if (index >= 0) {
					file = file.mid(index + qstr("tbuild\\tdesktop\\telegram\\").size());
					if (file.startsWith(qstr("sourcefiles\\"))) {
						file = file.mid(qstr("sourcefiles\\").size());
					}
				}
				result.append(csEntry.name).append(qsl(" (%1 - %2) 0x%3").arg(file).arg(csEntry.lineNumber).arg(address, 0, 16)).append('\n');
			}
		}
	}
	return result;
}

void psWriteStackTrace(int file) {
	if (!LoadDbgHelp()) {
		SignalHandlers::dump() << "ERROR: Could not load dbghelp.dll!\n";
		return;
	}

	HANDLE hThread = GetCurrentThread(), hProcess = GetCurrentProcess();
	const CONTEXT *context = NULL;
	LPVOID pUserData = NULL;

	CONTEXT c;
	int frameNum;

	memset(&c, 0, sizeof(CONTEXT));
	c.ContextFlags = CONTEXT_FULL;
	RtlCaptureContext(&c);

	// init STACKFRAME for first call
	STACKFRAME64 s; // in/out stackframe
	memset(&s, 0, sizeof(s));
	DWORD imageType;
#ifdef _M_IX86
	// normally, call ImageNtHeader() and use machine info from PE header
	imageType = IMAGE_FILE_MACHINE_I386;
	s.AddrPC.Offset = c.Eip;
	s.AddrPC.Mode = AddrModeFlat;
	s.AddrFrame.Offset = c.Ebp;
	s.AddrFrame.Mode = AddrModeFlat;
	s.AddrStack.Offset = c.Esp;
	s.AddrStack.Mode = AddrModeFlat;
#elif _M_X64
	imageType = IMAGE_FILE_MACHINE_AMD64;
	s.AddrPC.Offset = c.Rip;
	s.AddrPC.Mode = AddrModeFlat;
	s.AddrFrame.Offset = c.Rsp;
	s.AddrFrame.Mode = AddrModeFlat;
	s.AddrStack.Offset = c.Rsp;
	s.AddrStack.Mode = AddrModeFlat;
#elif _M_IA64
	imageType = IMAGE_FILE_MACHINE_IA64;
	s.AddrPC.Offset = c.StIIP;
	s.AddrPC.Mode = AddrModeFlat;
	s.AddrFrame.Offset = c.IntSp;
	s.AddrFrame.Mode = AddrModeFlat;
	s.AddrBStore.Offset = c.RsBSP;
	s.AddrBStore.Mode = AddrModeFlat;
	s.AddrStack.Offset = c.IntSp;
	s.AddrStack.Mode = AddrModeFlat;
#else
#error "Platform not supported!"
#endif

	for (frameNum = 0; frameNum < 1000; ++frameNum) {
		// get next stack frame (StackWalk64(), SymFunctionTableAccess64(), SymGetModuleBase64())
		// if this returns ERROR_INVALID_ADDRESS (487) or ERROR_NOACCESS (998), you can
		// assume that either you are done, or that the stack is so hosed that the next
		// deeper frame could not be found.
		// CONTEXT need not to be suplied if imageTyp is IMAGE_FILE_MACHINE_I386!
		if (!stackWalk64(imageType, hProcess, hThread, &s, &c, ReadProcessMemoryRoutine64, symFunctionTableAccess64, symGetModuleBase64, NULL)) {
			SignalHandlers::dump() << "ERROR: Call to StackWalk64() failed!\n";
			return;
		}

		if (s.AddrPC.Offset == s.AddrReturn.Offset) {
			SignalHandlers::dump() << s.AddrPC.Offset << "\n";
			SignalHandlers::dump() << "ERROR: StackWalk64() endless callstack!";
			return;
		}
		if (s.AddrPC.Offset != 0) { // we seem to have a valid PC
			SignalHandlers::dump() << s.AddrPC.Offset << "\n";
		}

		if (s.AddrReturn.Offset == 0) {
			break;
		}
	}
}

int psShowCrash(const QString &crashdump) {
	QString text;

	QFile dump(crashdump);
	if (dump.open(QIODevice::ReadOnly)) {
		text = qsl("Crash dump file '%1':\n\n").arg(QFileInfo(crashdump).absoluteFilePath());
		if (!LoadDbgHelp(true)) {
			text += qsl("ERROR: could not init dbghelp.dll!");
		} else {
			text += _showCrashDump(dump.readAll());
			symCleanup(GetCurrentProcess());
		}
	} else {
		text = qsl("ERROR: could not read crash dump file '%1'").arg(QFileInfo(crashdump).absoluteFilePath());
	}

	WCHAR szTemp[MAX_PATH + 1] = { 0 };
	GetModuleFileName(NULL, szTemp, MAX_PATH);

	QByteArray args[] = { QString::fromWCharArray(szTemp).toUtf8() };
	int a_argc = 1;
	char *a_argv[1] = { args[0].data() };
	QApplication app(a_argc, a_argv);

	QTextEdit wnd;
	wnd.setReadOnly(true);
	wnd.setPlainText(text);

	QRect scr(QApplication::primaryScreen()->availableGeometry());
	wnd.setGeometry(scr.x() + (scr.width() / 6), scr.y() + (scr.height() / 6), scr.width() / 2, scr.height() / 2);
	wnd.show();

	return app.exec();
}

class StringReferenceWrapper {
public:

	StringReferenceWrapper(_In_reads_(length) PCWSTR stringRef, _In_ UINT32 length) throw()	{
		HRESULT hr = windowsCreateStringReference(stringRef, length, &_header, &_hstring);
		if (!SUCCEEDED(hr)) {
			RaiseException(static_cast<DWORD>(STATUS_INVALID_PARAMETER), EXCEPTION_NONCONTINUABLE, 0, nullptr);
		}
	}

	~StringReferenceWrapper() {
		windowsDeleteString(_hstring);
	}

	template <size_t N>
	StringReferenceWrapper(_In_reads_(N) wchar_t const (&stringRef)[N]) throw() {
		UINT32 length = N - 1;
		HRESULT hr = windowsCreateStringReference(stringRef, length, &_header, &_hstring);
		if (!SUCCEEDED(hr))	{
			RaiseException(static_cast<DWORD>(STATUS_INVALID_PARAMETER), EXCEPTION_NONCONTINUABLE, 0, nullptr);
		}
	}

	template <size_t _>
	StringReferenceWrapper(_In_reads_(_) wchar_t(&stringRef)[_]) throw() {
		UINT32 length;
		HRESULT hr = SizeTToUInt32(wcslen(stringRef), &length);
		if (!SUCCEEDED(hr)) {
			RaiseException(static_cast<DWORD>(STATUS_INVALID_PARAMETER), EXCEPTION_NONCONTINUABLE, 0, nullptr);
		}

		windowsCreateStringReference(stringRef, length, &_header, &_hstring);
	}

	HSTRING Get() const throw()	{
		return _hstring;
	}

private:
	HSTRING _hstring;
	HSTRING_HEADER _header;

};

HRESULT SetNodeValueString(_In_ HSTRING inputString, _In_ IXmlNode *node, _In_ IXmlDocument *xml) {
	ComPtr<IXmlText> inputText;

	HRESULT hr = xml->CreateTextNode(inputString, &inputText);
	if (!SUCCEEDED(hr)) return hr;
	ComPtr<IXmlNode> inputTextNode;

	hr = inputText.As(&inputTextNode);
	if (!SUCCEEDED(hr)) return hr;

	ComPtr<IXmlNode> pAppendedChild;
	return node->AppendChild(inputTextNode.Get(), &pAppendedChild);
}

HRESULT SetAudioSilent(_In_ IXmlDocument *toastXml) {
	ComPtr<IXmlNodeList> nodeList;
	HRESULT hr = toastXml->GetElementsByTagName(StringReferenceWrapper(L"audio").Get(), &nodeList);
	if (!SUCCEEDED(hr)) return hr;

	ComPtr<IXmlNode> audioNode;
	hr = nodeList->Item(0, &audioNode);
	if (!SUCCEEDED(hr)) return hr;

	if (audioNode) {
		ComPtr<IXmlElement> audioElement;
		hr = audioNode.As(&audioElement);
		if (!SUCCEEDED(hr)) return hr;

		hr = audioElement->SetAttribute(StringReferenceWrapper(L"silent").Get(), StringReferenceWrapper(L"true").Get());
		if (!SUCCEEDED(hr)) return hr;
	} else {
		ComPtr<IXmlElement> audioElement;
		hr = toastXml->CreateElement(StringReferenceWrapper(L"audio").Get(), &audioElement);
		if (!SUCCEEDED(hr)) return hr;

		hr = audioElement->SetAttribute(StringReferenceWrapper(L"silent").Get(), StringReferenceWrapper(L"true").Get());
		if (!SUCCEEDED(hr)) return hr;

		ComPtr<IXmlNode> audioNode;
		hr = audioElement.As(&audioNode);
		if (!SUCCEEDED(hr)) return hr;

		ComPtr<IXmlNodeList> nodeList;
		hr = toastXml->GetElementsByTagName(StringReferenceWrapper(L"toast").Get(), &nodeList);
		if (!SUCCEEDED(hr)) return hr;

		ComPtr<IXmlNode> toastNode;
		hr = nodeList->Item(0, &toastNode);
		if (!SUCCEEDED(hr)) return hr;

		ComPtr<IXmlNode> appendedNode;
		hr = toastNode->AppendChild(audioNode.Get(), &appendedNode);
	}
	return hr;
}

HRESULT SetImageSrc(_In_z_ const wchar_t *imagePath, _In_ IXmlDocument *toastXml) {
	wchar_t imageSrc[MAX_PATH] = L"file:///";
	HRESULT hr = StringCchCat(imageSrc, ARRAYSIZE(imageSrc), imagePath);
	if (!SUCCEEDED(hr)) return hr;

	ComPtr<IXmlNodeList> nodeList;
	hr = toastXml->GetElementsByTagName(StringReferenceWrapper(L"image").Get(), &nodeList);
	if (!SUCCEEDED(hr)) return hr;

	ComPtr<IXmlNode> imageNode;
	hr = nodeList->Item(0, &imageNode);
	if (!SUCCEEDED(hr)) return hr;

	ComPtr<IXmlNamedNodeMap> attributes;
	hr = imageNode->get_Attributes(&attributes);
	if (!SUCCEEDED(hr)) return hr;

	ComPtr<IXmlNode> srcAttribute;
	hr = attributes->GetNamedItem(StringReferenceWrapper(L"src").Get(), &srcAttribute);
	if (!SUCCEEDED(hr)) return hr;

	return SetNodeValueString(StringReferenceWrapper(imageSrc).Get(), srcAttribute.Get(), toastXml);
}

typedef ABI::Windows::Foundation::ITypedEventHandler<ToastNotification*, ::IInspectable *> DesktopToastActivatedEventHandler;
typedef ABI::Windows::Foundation::ITypedEventHandler<ToastNotification*, ToastDismissedEventArgs*> DesktopToastDismissedEventHandler;
typedef ABI::Windows::Foundation::ITypedEventHandler<ToastNotification*, ToastFailedEventArgs*> DesktopToastFailedEventHandler;

class ToastEventHandler : public Implements<DesktopToastActivatedEventHandler, DesktopToastDismissedEventHandler, DesktopToastFailedEventHandler> {
public:

	ToastEventHandler::ToastEventHandler(const PeerId &peer, MsgId msg) : _ref(1), _peerId(peer), _msgId(msg) {
	}
	~ToastEventHandler() {
	}

	// DesktopToastActivatedEventHandler
	IFACEMETHODIMP Invoke(_In_ IToastNotification *sender, _In_ IInspectable* args) {
		ToastNotifications::iterator i = toastNotifications.find(_peerId);
		if (i != toastNotifications.cend()) {
			i.value().remove(_msgId);
			if (i.value().isEmpty()) {
				toastNotifications.erase(i);
			}
		}
		if (App::wnd()) {
			History *history = App::history(_peerId);

			App::wnd()->showFromTray();
			if (App::passcoded()) {
				App::wnd()->setInnerFocus();
				App::wnd()->notifyClear();
			} else {
				App::wnd()->hideSettings();
				bool tomsg = !history->peer->isUser() && (_msgId > 0);
				if (tomsg) {
					HistoryItem *item = App::histItemById(peerToChannel(_peerId), _msgId);
					if (!item || !item->mentionsMe()) {
						tomsg = false;
					}
				}
				Ui::showPeerHistory(history, tomsg ? _msgId : ShowAtUnreadMsgId);
				App::wnd()->notifyClear(history);
			}
			SetForegroundWindow(App::wnd()->psHwnd());
		}
		return S_OK;
	}

	// DesktopToastDismissedEventHandler
	IFACEMETHODIMP Invoke(_In_ IToastNotification *sender, _In_ IToastDismissedEventArgs *e)  {
		ToastDismissalReason tdr;
		if (SUCCEEDED(e->get_Reason(&tdr))) {
			switch (tdr) {
			case ToastDismissalReason_ApplicationHidden:
				break;
			case ToastDismissalReason_UserCanceled:
			case ToastDismissalReason_TimedOut:
			default:
				ToastNotifications::iterator i = toastNotifications.find(_peerId);
				if (i != toastNotifications.cend()) {
					i.value().remove(_msgId);
					if (i.value().isEmpty()) {
						toastNotifications.erase(i);
					}
				}
				break;
			}
		}
		return S_OK;
	}

	// DesktopToastFailedEventHandler
	IFACEMETHODIMP Invoke(_In_ IToastNotification *sender, _In_ IToastFailedEventArgs *e) {
		ToastNotifications::iterator i = toastNotifications.find(_peerId);
		if (i != toastNotifications.cend()) {
			i.value().remove(_msgId);
			if (i.value().isEmpty()) {
				toastNotifications.erase(i);
			}
		}
		return S_OK;
	}

	// IUnknown
	IFACEMETHODIMP_(ULONG) AddRef() {
		return InterlockedIncrement(&_ref);
	}

	IFACEMETHODIMP_(ULONG) Release() {
		ULONG l = InterlockedDecrement(&_ref);
		if (l == 0) delete this;
		return l;
	}

	IFACEMETHODIMP QueryInterface(_In_ REFIID riid, _COM_Outptr_ void **ppv) {
		if (IsEqualIID(riid, IID_IUnknown))
			*ppv = static_cast<IUnknown*>(static_cast<DesktopToastActivatedEventHandler*>(this));
		else if (IsEqualIID(riid, __uuidof(DesktopToastActivatedEventHandler)))
			*ppv = static_cast<DesktopToastActivatedEventHandler*>(this);
		else if (IsEqualIID(riid, __uuidof(DesktopToastDismissedEventHandler)))
			*ppv = static_cast<DesktopToastDismissedEventHandler*>(this);
		else if (IsEqualIID(riid, __uuidof(DesktopToastFailedEventHandler)))
			*ppv = static_cast<DesktopToastFailedEventHandler*>(this);
		else *ppv = nullptr;

		if (*ppv) {
			reinterpret_cast<IUnknown*>(*ppv)->AddRef();
			return S_OK;
		}

		return E_NOINTERFACE;
	}

private:

	ULONG _ref;
	PeerId _peerId;
	MsgId _msgId;
};

template<class T>
_Check_return_ __inline HRESULT _1_GetActivationFactory(_In_ HSTRING activatableClassId, _COM_Outptr_ T** factory) {
	return roGetActivationFactory(activatableClassId, IID_INS_ARGS(factory));
}

template<typename T>
inline HRESULT wrap_GetActivationFactory(_In_ HSTRING activatableClassId, _Inout_ Details::ComPtrRef<T> factory) throw() {
	return _1_GetActivationFactory(activatableClassId, factory.ReleaseAndGetAddressOf());
}

QString toastImage(const StorageKey &key, PeerData *peer) {
	uint64 ms = getms(true);
	ToastImages::iterator i = toastImages.find(key);
	if (i != toastImages.cend()) {
		if (i->until) {
			i->until = ms + NotifyDeletePhotoAfter;
			if (App::wnd()) App::wnd()->psCleanNotifyPhotosIn(-NotifyDeletePhotoAfter);
		}
	} else {
		ToastImage v;
		if (key.first) {
			v.until = ms + NotifyDeletePhotoAfter;
			if (App::wnd()) App::wnd()->psCleanNotifyPhotosIn(-NotifyDeletePhotoAfter);
		} else {
			v.until = 0;
		}
		v.path = cWorkingDir() + qsl("tdata/temp/") + QString::number(MTP::nonce<uint64>(), 16) + qsl(".png");
		if (peer->photo->loaded() && (key.first || key.second)) {
			peer->photo->pix().save(v.path, "PNG");
		} else if (!key.first && key.second) {
			(peer->isUser() ? userDefPhoto : chatDefPhoto)(peer->colorIndex)->pix().save(v.path, "PNG");
		} else {
			App::wnd()->iconLarge().save(v.path, "PNG");
		}
		i = toastImages.insert(key, v);
		ToastImageSavedFlag = true;
	}
	return i->path;
}

bool CreateToast(PeerData *peer, int32 msgId, bool showpix, const QString &title, const QString &subtitle, const QString &msg) {
	if (!useToast || !toastNotificationManager || !toastNotifier || !toastNotificationFactory) return false;

	ComPtr<IXmlDocument> toastXml;
	bool withSubtitle = !subtitle.isEmpty();

	HRESULT hr = toastNotificationManager->GetTemplateContent(withSubtitle ? ToastTemplateType_ToastImageAndText04 : ToastTemplateType_ToastImageAndText02, &toastXml);
	if (!SUCCEEDED(hr)) return false;

	hr = SetAudioSilent(toastXml.Get());
	if (!SUCCEEDED(hr)) return false;

	StorageKey key;
	QString imagePath;
	if (showpix) {
		if (peer->photoLoc.isNull() || !peer->photo->loaded()) {
			key = StorageKey(0, (peer->isUser() ? 0x1000 : 0x2000) | peer->colorIndex);
		} else {
			key = storageKey(peer->photoLoc);
		}
	} else {
		key = StorageKey(0, 0);
	}
	QString image = toastImage(key, peer);
	std::wstring wimage = QDir::toNativeSeparators(image).toStdWString();

	hr = SetImageSrc(wimage.c_str(), toastXml.Get());
	if (!SUCCEEDED(hr)) return false;

	ComPtr<IXmlNodeList> nodeList;
	hr = toastXml->GetElementsByTagName(StringReferenceWrapper(L"text").Get(), &nodeList);
	if (!SUCCEEDED(hr)) return false;

	UINT32 nodeListLength;
	hr = nodeList->get_Length(&nodeListLength);
	if (!SUCCEEDED(hr)) return false;

	if (nodeListLength < (withSubtitle ? 3 : 2)) return false;

	{
		ComPtr<IXmlNode> textNode;
		hr = nodeList->Item(0, &textNode);
		if (!SUCCEEDED(hr)) return false;

		std::wstring wtitle = title.toStdWString();
		hr = SetNodeValueString(StringReferenceWrapper(wtitle.data(), wtitle.size()).Get(), textNode.Get(), toastXml.Get());
		if (!SUCCEEDED(hr)) return false;
	}
	if (withSubtitle) {
		ComPtr<IXmlNode> textNode;
		hr = nodeList->Item(1, &textNode);
		if (!SUCCEEDED(hr)) return false;

		std::wstring wsubtitle = subtitle.toStdWString();
		hr = SetNodeValueString(StringReferenceWrapper(wsubtitle.data(), wsubtitle.size()).Get(), textNode.Get(), toastXml.Get());
		if (!SUCCEEDED(hr)) return false;
	}
	{
		ComPtr<IXmlNode> textNode;
		hr = nodeList->Item(withSubtitle ? 2 : 1, &textNode);
		if (!SUCCEEDED(hr)) return false;

		std::wstring wmsg = msg.toStdWString();
		hr = SetNodeValueString(StringReferenceWrapper(wmsg.data(), wmsg.size()).Get(), textNode.Get(), toastXml.Get());
		if (!SUCCEEDED(hr)) return false;
	}

	ComPtr<IToastNotification> toast;
	hr = toastNotificationFactory->CreateToastNotification(toastXml.Get(), &toast);
	if (!SUCCEEDED(hr)) return false;

	EventRegistrationToken activatedToken, dismissedToken, failedToken;
	ComPtr<ToastEventHandler> eventHandler(new ToastEventHandler(peer->id, msgId));

	hr = toast->add_Activated(eventHandler.Get(), &activatedToken);
	if (!SUCCEEDED(hr)) return false;

	hr = toast->add_Dismissed(eventHandler.Get(), &dismissedToken);
	if (!SUCCEEDED(hr)) return false;

	hr = toast->add_Failed(eventHandler.Get(), &failedToken);
	if (!SUCCEEDED(hr)) return false;

	ToastNotifications::iterator i = toastNotifications.find(peer->id);
	if (i != toastNotifications.cend()) {
		QMap<MsgId, ToastNotificationPtr>::iterator j = i->find(msgId);
		if (j != i->cend()) {
			ComPtr<IToastNotification> notify = j->p;
			i->erase(j);
			toastNotifier->Hide(notify.Get());
			i = toastNotifications.find(peer->id);
		}
	}
	if (i == toastNotifications.cend()) {
		i = toastNotifications.insert(peer->id, QMap<MsgId, ToastNotificationPtr>());
	}
	hr = toastNotifier->Show(toast.Get());
	if (!SUCCEEDED(hr)) {
		i = toastNotifications.find(peer->id);
		if (i != toastNotifications.cend() && i->isEmpty()) toastNotifications.erase(i);
		return false;
	}
	toastNotifications[peer->id].insert(msgId, toast);

	return true;
}

QString pinnedPath() {
	static const int maxFileLen = MAX_PATH * 10;
	WCHAR wstrPath[maxFileLen];
	if (GetEnvironmentVariable(L"APPDATA", wstrPath, maxFileLen)) {
		QDir appData(QString::fromStdWString(std::wstring(wstrPath)));
		return appData.absolutePath() + qsl("/Microsoft/Internet Explorer/Quick Launch/User Pinned/TaskBar/");
	}
	return QString();
}

void CheckPinnedAppUserModelId() {
	if (!propVariantToString) return;

	static const int maxFileLen = MAX_PATH * 10;

	HRESULT hr = CoInitialize(0);
	if (!SUCCEEDED(hr)) return;

	QString path = pinnedPath();
	std::wstring p = QDir::toNativeSeparators(path).toStdWString();

	WCHAR src[MAX_PATH];
	GetModuleFileName(GetModuleHandle(0), src, MAX_PATH);
	BY_HANDLE_FILE_INFORMATION srcinfo = { 0 };
	HANDLE srcfile = CreateFile(src, 0x00, 0x00, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
	if (srcfile == INVALID_HANDLE_VALUE) return;
	BOOL srcres = GetFileInformationByHandle(srcfile, &srcinfo);
	CloseHandle(srcfile);
	if (!srcres) return;
	LOG(("Checking.."));
	WIN32_FIND_DATA findData;
	HANDLE findHandle = FindFirstFileEx((p + L"*").c_str(), FindExInfoStandard, &findData, FindExSearchNameMatch, 0, 0);
	if (findHandle == INVALID_HANDLE_VALUE) {
		LOG(("Init Error: could not find files in pinned folder"));
		return;
	}
	do {
		std::wstring fname = p + findData.cFileName;
		LOG(("Checking %1").arg(QString::fromStdWString(fname)));
		if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
			continue;
		} else {
			DWORD attributes = GetFileAttributes(fname.c_str());
			if (attributes >= 0xFFFFFFF) continue; // file does not exist

			ComPtr<IShellLink> shellLink;
			HRESULT hr = CoCreateInstance(CLSID_ShellLink, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&shellLink));
			if (!SUCCEEDED(hr)) continue;

			ComPtr<IPersistFile> persistFile;
			hr = shellLink.As(&persistFile);
			if (!SUCCEEDED(hr)) continue;

			hr = persistFile->Load(fname.c_str(), STGM_READWRITE);
			if (!SUCCEEDED(hr)) continue;

			WCHAR dst[MAX_PATH];
			hr = shellLink->GetPath(dst, MAX_PATH, 0, 0);
			if (!SUCCEEDED(hr)) continue;

			BY_HANDLE_FILE_INFORMATION dstinfo = { 0 };
			HANDLE dstfile = CreateFile(dst, 0x00, 0x00, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
			if (dstfile == INVALID_HANDLE_VALUE) continue;
			BOOL dstres = GetFileInformationByHandle(dstfile, &dstinfo);
			CloseHandle(dstfile);
			if (!dstres) continue;

			if (srcinfo.dwVolumeSerialNumber == dstinfo.dwVolumeSerialNumber && srcinfo.nFileIndexLow == dstinfo.nFileIndexLow && srcinfo.nFileIndexHigh == dstinfo.nFileIndexHigh) {
				ComPtr<IPropertyStore> propertyStore;
				hr = shellLink.As(&propertyStore);
				if (!SUCCEEDED(hr)) return;

				PROPVARIANT appIdPropVar;
				hr = propertyStore->GetValue(pkey_AppUserModel_ID, &appIdPropVar);
				if (!SUCCEEDED(hr)) return;
				LOG(("Reading.."));
				WCHAR already[MAX_PATH];
				hr = propVariantToString(appIdPropVar, already, MAX_PATH);
				if (SUCCEEDED(hr)) {
					if (std::wstring(AppUserModelId()) == already) {
						LOG(("Already!"));
						PropVariantClear(&appIdPropVar);
						return;
					}
				}
				if (appIdPropVar.vt != VT_EMPTY) {
					PropVariantClear(&appIdPropVar);
					return;
				}
				PropVariantClear(&appIdPropVar);

				hr = InitPropVariantFromString(AppUserModelId(), &appIdPropVar);
				if (!SUCCEEDED(hr)) return;

				hr = propertyStore->SetValue(pkey_AppUserModel_ID, appIdPropVar);
				PropVariantClear(&appIdPropVar);
				if (!SUCCEEDED(hr)) return;

				hr = propertyStore->Commit();
				if (!SUCCEEDED(hr)) return;

				if (persistFile->IsDirty() == S_OK) {
					persistFile->Save(fname.c_str(), TRUE);
				}
				return;
			}
		}
	} while (FindNextFile(findHandle, &findData));
	DWORD errorCode = GetLastError();
	if (errorCode && errorCode != ERROR_NO_MORE_FILES) { // everything is found
		LOG(("Init Error: could not find some files in pinned folder"));
		return;
	}
	FindClose(findHandle);
}

QString systemShortcutPath() {
	static const int maxFileLen = MAX_PATH * 10;
	WCHAR wstrPath[maxFileLen];
	if (GetEnvironmentVariable(L"APPDATA", wstrPath, maxFileLen)) {
		QDir appData(QString::fromStdWString(std::wstring(wstrPath)));
		return appData.absolutePath() + qsl("/Microsoft/Windows/Start Menu/Programs/");
	}
	return QString();
}

void CleanupAppUserModelIdShortcut() {
	static const int maxFileLen = MAX_PATH * 10;

	QString path = systemShortcutPath() + qsl("Telegram.lnk");
	std::wstring p = QDir::toNativeSeparators(path).toStdWString();

	DWORD attributes = GetFileAttributes(p.c_str());
	if (attributes >= 0xFFFFFFF) return; // file does not exist

	ComPtr<IShellLink> shellLink;
	HRESULT hr = CoCreateInstance(CLSID_ShellLink, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&shellLink));
	if (!SUCCEEDED(hr)) return;

	ComPtr<IPersistFile> persistFile;
	hr = shellLink.As(&persistFile);
	if (!SUCCEEDED(hr)) return;

	hr = persistFile->Load(p.c_str(), STGM_READWRITE);
	if (!SUCCEEDED(hr)) return;

	WCHAR szGotPath[MAX_PATH];
	WIN32_FIND_DATA wfd;
	hr = shellLink->GetPath(szGotPath, MAX_PATH, (WIN32_FIND_DATA*)&wfd, SLGP_SHORTPATH);
	if (!SUCCEEDED(hr)) return;

	if (QDir::toNativeSeparators(cExeDir() + cExeName()).toStdWString() == szGotPath) {
		QFile().remove(path);
	}
}

bool ValidateAppUserModelIdShortcutAt(const QString &path) {
	static const int maxFileLen = MAX_PATH * 10;

	std::wstring p = QDir::toNativeSeparators(path).toStdWString();

	DWORD attributes = GetFileAttributes(p.c_str());
	if (attributes >= 0xFFFFFFF) return false; // file does not exist

	ComPtr<IShellLink> shellLink;
	HRESULT hr = CoCreateInstance(CLSID_ShellLink, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&shellLink));
	if (!SUCCEEDED(hr)) return false;

	ComPtr<IPersistFile> persistFile;
	hr = shellLink.As(&persistFile);
	if (!SUCCEEDED(hr)) return false;

	hr = persistFile->Load(p.c_str(), STGM_READWRITE);
	if (!SUCCEEDED(hr)) return false;

	ComPtr<IPropertyStore> propertyStore;
	hr = shellLink.As(&propertyStore);
	if (!SUCCEEDED(hr)) return false;

	PROPVARIANT appIdPropVar;
	hr = propertyStore->GetValue(pkey_AppUserModel_ID, &appIdPropVar);
	if (!SUCCEEDED(hr)) return false;

	WCHAR already[MAX_PATH];
	hr = propVariantToString(appIdPropVar, already, MAX_PATH);
	if (SUCCEEDED(hr)) {
		if (std::wstring(AppUserModelId()) == already) {
			PropVariantClear(&appIdPropVar);
			return true;
		}
	}
	if (appIdPropVar.vt != VT_EMPTY) {
		PropVariantClear(&appIdPropVar);
		return false;
	}
	PropVariantClear(&appIdPropVar);

	hr = InitPropVariantFromString(AppUserModelId(), &appIdPropVar);
	if (!SUCCEEDED(hr)) return false;

	hr = propertyStore->SetValue(pkey_AppUserModel_ID, appIdPropVar);
	PropVariantClear(&appIdPropVar);
	if (!SUCCEEDED(hr)) return false;

	hr = propertyStore->Commit();
	if (!SUCCEEDED(hr)) return false;

	if (persistFile->IsDirty() == S_OK) {
		persistFile->Save(p.c_str(), TRUE);
	}

	return true;
}

bool ValidateAppUserModelIdShortcut() {
	if (!useToast) return false;

	QString path = systemShortcutPath();
	if (path.isEmpty()) return false;

	if (cBetaVersion()) {
		path += qsl("TelegramBeta.lnk");
		if (ValidateAppUserModelIdShortcutAt(path)) return true;
	} else {
		if (ValidateAppUserModelIdShortcutAt(path + qsl("Telegram Desktop/Telegram.lnk"))) return true;
		if (ValidateAppUserModelIdShortcutAt(path + qsl("Telegram Win (Unofficial)/Telegram.lnk"))) return true;

		path += qsl("Telegram.lnk");
		if (ValidateAppUserModelIdShortcutAt(path)) return true;
	}

	ComPtr<IShellLink> shellLink;
	HRESULT hr = CoCreateInstance(CLSID_ShellLink, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&shellLink));
	if (!SUCCEEDED(hr)) return false;

	hr = shellLink->SetPath(QDir::toNativeSeparators(cExeDir() + cExeName()).toStdWString().c_str());
	if (!SUCCEEDED(hr)) return false;

	hr = shellLink->SetArguments(L"");
	if (!SUCCEEDED(hr)) return false;

	hr = shellLink->SetWorkingDirectory(QDir::toNativeSeparators(QDir(cWorkingDir()).absolutePath()).toStdWString().c_str());
	if (!SUCCEEDED(hr)) return false;

	ComPtr<IPropertyStore> propertyStore;
	hr = shellLink.As(&propertyStore);
	if (!SUCCEEDED(hr)) return false;

	PROPVARIANT appIdPropVar;
	hr = InitPropVariantFromString(AppUserModelId(), &appIdPropVar);
	if (!SUCCEEDED(hr)) return false;

	hr = propertyStore->SetValue(pkey_AppUserModel_ID, appIdPropVar);
	PropVariantClear(&appIdPropVar);
	if (!SUCCEEDED(hr)) return false;

	PROPVARIANT startPinPropVar;
	hr = InitPropVariantFromUInt32(APPUSERMODEL_STARTPINOPTION_NOPINONINSTALL, &startPinPropVar);
	if (!SUCCEEDED(hr)) return false;

	hr = propertyStore->SetValue(pkey_AppUserModel_StartPinOption, startPinPropVar);
	PropVariantClear(&startPinPropVar);
	if (!SUCCEEDED(hr)) return false;

	hr = propertyStore->Commit();
	if (!SUCCEEDED(hr)) return false;

	ComPtr<IPersistFile> persistFile;
	hr = shellLink.As(&persistFile);
	if (!SUCCEEDED(hr)) return false;

	hr = persistFile->Save(QDir::toNativeSeparators(path).toStdWString().c_str(), TRUE);
	if (!SUCCEEDED(hr)) return false;

	return true;
}

bool InitToastManager() {
	if (!useToast || !ValidateAppUserModelIdShortcut()) return false;
	if (!SUCCEEDED(setCurrentProcessExplicitAppUserModelID(AppUserModelId()))) {
		return false;
	}
	if (!SUCCEEDED(wrap_GetActivationFactory(StringReferenceWrapper(RuntimeClass_Windows_UI_Notifications_ToastNotificationManager).Get(), &toastNotificationManager))) {
		return false;
	}
	if (!SUCCEEDED(toastNotificationManager->CreateToastNotifierWithId(StringReferenceWrapper(AppUserModelId(), wcslen(AppUserModelId())).Get(), &toastNotifier))) {
		return false;
	}
	if (!SUCCEEDED(wrap_GetActivationFactory(StringReferenceWrapper(RuntimeClass_Windows_UI_Notifications_ToastNotification).Get(), &toastNotificationFactory))) {
		return false;
	}
	QDir().mkpath(cWorkingDir() + qsl("tdata/temp"));
	return true;
}