qDebug() 's issue

[lutins]

im chinese,so where i use qDebug() found a issue.qDebug() can't not output a chinese character in Winxp.
i follow this bug in qcoreapplication_win.cpp in corelib folder function qWinMsgHandler

Q_CORE_EXPORT void qWinMsgHandler(QtMsgType t, const char* str)
{
    Q_UNUSED(t);
    // OutputDebugString is not threadsafe.
 
    // cannot use QMutex here, because qWarning()s in the QMutex
    // implementation may cause this function to recurse
    static QWinMsgHandlerCriticalSection staticCriticalSection;
 
    if (!str)
        str = "(null)";
 
    staticCriticalSection.lock();
    QT_WA({
        QString s(QString::fromLatin1(str));
        s += QLatin1String("\n");     
      OutputDebugStringW((TCHAR*)s.utf16());
    }, {
        QByteArray s(str);
        s += "\n";
        OutputDebugStringA(s.data());
    })
    staticCriticalSection.unlock();
}

Q_CORE_EXPORT void qWinMsgHandler(QtMsgType t, const char* str)
{
    Q_UNUSED(t);
    // OutputDebugString is not threadsafe.

    // cannot use QMutex here, because qWarning()s in the QMutex
    // implementation may cause this function to recurse
    static QWinMsgHandlerCriticalSection staticCriticalSection;

    if (!str)
        str = "(null)";

    staticCriticalSection.lock();
    QT_WA({
        QString s(QString::fromLatin1(str));
        s += QLatin1String("\n");     
      OutputDebugStringW((TCHAR*)s.utf16());
    }, {
        QByteArray s(str);
        s += "\n";
        OutputDebugStringA(s.data());
    })
    staticCriticalSection.unlock();
}

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bug in QString s(QString::fromLatin1(str)); if str is a gb18030 codec.then will get a error code

[spirit]

try to set needed codec for c-strings usgin this method:

...
int main(int argc, char **argv)
{
...
QTextCodec::setCodecForCStrings(QTextCodec::codecForName(....));
...
}

...
int main(int argc, char **argv)
{
...
QTextCodec::setCodecForCStrings(QTextCodec::codecForName(....));
...
}

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