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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Windows main function of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qt_windows.h"
#include "qbytearray.h"
#include "qstring.h"
#include "qvector.h"
#ifndef Q_OS_WINCE
# include <shlobj.h>
#endif
/*
This file contains the code in the qtmain library for Windows.
qtmain contains the Windows startup code and is required for
linking to the Qt DLL.
When a Windows application starts, the WinMain function is
invoked. WinMain calls qWinMain in the Qt DLL/library, which
initializes Qt.
*/
QT_BEGIN_NAMESPACE
#if defined(Q_OS_WINCE)
extern void __cdecl qWinMain(HINSTANCE, HINSTANCE, LPSTR, int, int &, QVector<char *> &);
#else
extern void qWinMain(HINSTANCE, HINSTANCE, LPSTR, int, int &, QVector<char *> &);
#endif
QT_END_NAMESPACE
QT_USE_NAMESPACE
#if defined(QT_NEEDS_QMAIN)
int qMain(int, char **);
#define main qMain
#else
#ifdef Q_OS_WINCE
extern "C" int __cdecl main(int, char **);
#else
extern "C" int main(int, char **);
#endif
#endif
/*
WinMain() - Initializes Windows and calls user's startup function main().
NOTE: WinMain() won't be called if the application was linked as a "console"
application.
*/
#ifndef Q_OS_WINCE
// Convert a wchar_t to char string, equivalent to QString::toLocal8Bit()
// when passed CP_ACP.
static inline char *wideToMulti(int codePage, const wchar_t *aw)
{
const int required = WideCharToMultiByte(codePage, 0, aw, -1, NULL, 0, NULL, NULL);
char *result = new char[required];
WideCharToMultiByte(codePage, 0, aw, -1, result, required, NULL, NULL);
return result;
}
extern "C" int APIENTRY WinMain(HINSTANCE, HINSTANCE, LPSTR /*cmdParamarg*/, int /* cmdShow */)
{
int argc;
wchar_t **argvW = CommandLineToArgvW(GetCommandLineW(), &argc);
if (!argvW)
return -1;
char **argv = new char *[argc + 1];
for (int i = 0; i < argc; ++i)
argv[i] = wideToMulti(CP_ACP, argvW[i]);
argv[argc] = Q_NULLPTR;
LocalFree(argvW);
const int exitCode = main(argc, argv);
for (int i = 0; i < argc && argv[i]; ++i)
delete [] argv[i];
delete [] argv;
return exitCode;
}
#else // !Q_OS_WINCE
int WINAPI WinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR /*wCmdParam*/, int cmdShow)
{
QByteArray cmdParam = QString::fromWCharArray(GetCommandLine()).toLocal8Bit();
wchar_t appName[MAX_PATH];
GetModuleFileName(0, appName, MAX_PATH);
cmdParam.prepend(QString(QLatin1String("\"%1\" ")).arg(QString::fromWCharArray(appName)).toLocal8Bit());
int argc = 0;
QVector<char *> argv(8);
qWinMain(instance, prevInstance, cmdParam.data(), cmdShow, argc, argv);
wchar_t uniqueAppID[MAX_PATH];
GetModuleFileName(0, uniqueAppID, MAX_PATH);
QString uid = QString::fromWCharArray(uniqueAppID).toLower().replace(QLatin1String("\\"), QLatin1String("_"));
// If there exists an other instance of this application
// it will be the owner of a mutex with the unique ID.
HANDLE mutex = CreateMutex(NULL, TRUE, (LPCWSTR)uid.utf16());
if (mutex && ERROR_ALREADY_EXISTS == GetLastError()) {
CloseHandle(mutex);
// The app is already running, so we use the unique
// ID to create a unique messageNo, which is used
// as the registered class name for the windows
// created. Set the first instance's window to the
// foreground, else just terminate.
// Use bitwise 0x01 OR to reactivate window state if
// it was hidden
UINT msgNo = RegisterWindowMessage((LPCWSTR)uid.utf16());
HWND aHwnd = FindWindow((LPCWSTR)QString::number(msgNo).utf16(), 0);
if (aHwnd)
SetForegroundWindow((HWND)(((ULONG)aHwnd) | 0x01));
return 0;
}
int result = main(argc, argv.data());
CloseHandle(mutex);
return result;
}
#endif // Q_OS_WINCE
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