/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the Windows main function of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:BSD$

** 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 Nokia Corporation and its Subsidiary(-ies) 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,

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** (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"

/*

  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.

*/

#ifdef Q_OS_WINCE

int WINAPI WinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR /*wCmdParam*/, int cmdShow)

#else

extern "C"

int APIENTRY WinMain(HINSTANCE instance, HINSTANCE prevInstance, LPSTR /*cmdParamarg*/, int cmdShow)

#endif

{

    QByteArray cmdParam = QString::fromWCharArray(GetCommandLine()).toLocal8Bit();

#if defined(Q_OS_WINCE)

    wchar_t appName[MAX_PATH];

    GetModuleFileName(0, appName, MAX_PATH);

    cmdParam.prepend(QString(QLatin1String("\"%1\" ")).arg(QString::fromWCharArray(appName)).toLocal8Bit());

#endif

    int argc = 0;

    QVector<char *> argv(8);

    qWinMain(instance, prevInstance, cmdParam.data(), cmdShow, argc, argv);

#if defined(Q_OS_WINCE)

    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;

    }

#endif // Q_OS_WINCE

    int result = main(argc, argv.data());

#if defined(Q_OS_WINCE)

    CloseHandle(mutex);

#endif

    return result;

}