C++ (Cpp) QAudioSystemFactoryInterface::createDeviceInfo示例

示例#1

文件： qaudiodevicefactory.cpp 项目： SchleunigerAG/WinEC7_Qt5.3.1_Fixes

QAbstractAudioDeviceInfo* QAudioDeviceFactory::audioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode)
{
    QAbstractAudioDeviceInfo *rc = 0;

#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
    QAudioSystemFactoryInterface* plugin =
        qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(realm));

    if (plugin)
        rc = plugin->createDeviceInfo(handle, mode);
#endif

    return rc == 0 ? new QNullDeviceInfo() : rc;
}

示例#2

QAbstractAudioDeviceInfo* QAudioDeviceFactory::audioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode)
{
    QAbstractAudioDeviceInfo *rc = 0;

#ifndef QT_NO_AUDIO_BACKEND
#if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA) || defined(Q_OS_SYMBIAN))
    if (realm == QLatin1String("builtin"))
        return new QAudioDeviceInfoInternal(handle, mode);
#endif
#endif

#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
    QAudioSystemFactoryInterface* plugin =
        qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(realm));

    if (plugin)
        rc = plugin->createDeviceInfo(handle, mode);
#endif

    return rc == 0 ? new QNullDeviceInfo() : rc;
}