QT 父控件设置为透明背景后,怎么设置子控件的透明度
使用 setWindowOpacity 无效果
重写 paintEvent 可以实现这个效果,但控件样式较多,自己绘制比较麻烦
setStyleSheet 可不可以,只改变透明度,不影响其他外观
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setWindowOpacity 可以啊 除非你是在linux上
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看看Qt::WA_TranslucentBackground的解释
Indicates that the widget should have a translucent background, i.e., any non-opaque regions of the widgets will be translucent because the widget will have an alpha channel. Setting this flag causes WA_NoSystemBackground to be set. On Windows the widget also needs the Qt::FramelessWindowHint window flag to be set. This flag is set or cleared by the widget's author.
[解决办法]
paintEvent如何让控件透明啊