DialogSoundCard 0 0 306 154 DialogSoundCard devices sampleRates 4000 192000 48000 Channels 1 5 2 volume QSlider::groove:horizontal { border: 1px solid #999999; height: 8px; /* the groove expands to the size of the slider by default. by giving it a height, it has a fixed size */ background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #B1B1B1, stop:1 #c4c4c4); margin: 2px 0; } QSlider::handle:horizontal { background: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #b4b4b4, stop:1 #8f8f8f); border: 1px solid #5c5c5c; width: 18px; margin: -2px 0; /* handle is placed by default on the contents rect of the groove. Expand outside the groove */ border-radius: 3px; } 50 Qt::Horizontal QProgressBar { border: 2px solid grey; border-radius: 5px; } QProgressBar::chunk { background-color: #05B8CC; } 30000 0 false Qt::Horizontal 40 20 开始 停止