137 lines
4.8 KiB
C++
137 lines
4.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Windows main function of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qt_windows.h"
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#include "qbytearray.h"
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#include "qstring.h"
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#include "qvector.h"
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/*
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This file contains the code in the qtmain library for Windows.
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qtmain contains the Windows startup code and is required for
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linking to the Qt DLL.
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When a Windows application starts, the WinMain function is
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invoked. WinMain calls qWinMain in the Qt DLL/library, which
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initializes Qt.
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*/
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QT_BEGIN_NAMESPACE
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#if defined(Q_OS_WINCE)
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extern void __cdecl qWinMain(HINSTANCE, HINSTANCE, LPSTR, int, int &, QVector<char *> &);
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#else
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extern void qWinMain(HINSTANCE, HINSTANCE, LPSTR, int, int &, QVector<char *> &);
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#endif
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QT_END_NAMESPACE
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QT_USE_NAMESPACE
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#if defined(QT_NEEDS_QMAIN)
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int qMain(int, char **);
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#define main qMain
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#else
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#ifdef Q_OS_WINCE
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extern "C" int __cdecl main(int, char **);
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#else
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extern "C" int main(int, char **);
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#endif
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#endif
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/*
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WinMain() - Initializes Windows and calls user's startup function main().
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NOTE: WinMain() won't be called if the application was linked as a "console"
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application.
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*/
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#ifdef Q_OS_WINCE
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int WINAPI WinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR /*wCmdParam*/, int cmdShow)
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#else
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extern "C"
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int APIENTRY WinMain(HINSTANCE instance, HINSTANCE prevInstance, LPSTR /*cmdParamarg*/, int cmdShow)
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#endif
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{
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QByteArray cmdParam = QString::fromWCharArray(GetCommandLine()).toLocal8Bit();
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#if defined(Q_OS_WINCE)
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wchar_t appName[MAX_PATH];
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GetModuleFileName(0, appName, MAX_PATH);
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cmdParam.prepend(QString(QLatin1String("\"%1\" ")).arg(QString::fromWCharArray(appName)).toLocal8Bit());
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#endif
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int argc = 0;
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QVector<char *> argv(8);
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qWinMain(instance, prevInstance, cmdParam.data(), cmdShow, argc, argv);
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#if defined(Q_OS_WINCE)
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wchar_t uniqueAppID[MAX_PATH];
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GetModuleFileName(0, uniqueAppID, MAX_PATH);
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QString uid = QString::fromWCharArray(uniqueAppID).toLower().replace(QLatin1String("\\"), QLatin1String("_"));
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// If there exists an other instance of this application
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// it will be the owner of a mutex with the unique ID.
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HANDLE mutex = CreateMutex(NULL, TRUE, (LPCWSTR)uid.utf16());
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if (mutex && ERROR_ALREADY_EXISTS == GetLastError()) {
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CloseHandle(mutex);
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// The app is already running, so we use the unique
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// ID to create a unique messageNo, which is used
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// as the registered class name for the windows
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// created. Set the first instance's window to the
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// foreground, else just terminate.
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// Use bitwise 0x01 OR to reactivate window state if
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// it was hidden
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UINT msgNo = RegisterWindowMessage((LPCWSTR)uid.utf16());
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HWND aHwnd = FindWindow((LPCWSTR)QString::number(msgNo).utf16(), 0);
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if (aHwnd)
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SetForegroundWindow((HWND)(((ULONG)aHwnd) | 0x01));
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return 0;
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}
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#endif // Q_OS_WINCE
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int result = main(argc, argv.data());
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#if defined(Q_OS_WINCE)
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CloseHandle(mutex);
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#endif
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return result;
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}
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