In Qt4.7.4, QAudioOutput also doesn't have method to control audio volume. Is it right?
I try CMdaAudioPlayerUtility in symbian, but it seems need multimediaDD capacity. It cannot pass NOKIA signed.
And then I also try QMediaPlayer to control volume, but it must in the play(). Also cannot use.
Have a method (use QAudioOutput) to control volume sound in Qt4.7.4?