I can't get monito's depth?
i have two monitos,i want to get two monitos' depth, so i write this:
@QDesktopWidget* desktopWidget = QApplication::desktop();
int nMonitorCount = desktopWidget->screenCount();
for( int i=0; i< nMonitorCount; i++ )
QRect screenRect = desktopWidget->screenGeometry(i);
QPixmap pix = desktopWidget->grab(screenRect);
int depth = pix.toImage().depth();
qDebug()<<"depth = "<<depth；
but i get only my primaryScreen's depth,so who can help me to get two monitos' depth?