SoundGain 0 0 200 250 0 0 200 250 200 250 Sound Gain 0 0 Gain Qt::AlignCenter 18 2 4 Qt::Vertical false QSlider::TicksBothSides 0 0 Qt::Vertical QDialogButtonBox::Cancel|QDialogButtonBox::Ok buttonBox accepted() SoundGain accept() 248 254 157 274 buttonBox rejected() SoundGain reject() 316 260 286 274