QT窗口透明问题

liyu_tiger 2011-01-12 01:23:56

我用一个dialog(A)作为播放窗口，另一dialog(B)作为控制窗口，dialog B是盖住dialog A的一小部分，怎样让dialog B窗口及其控件都透明？
setWindowOpacity(0.7)在我的liunx系统下，是无效的。

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人到中年琐事多 2011-01-15

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又见透明

念茜 2011-01-14

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无边框+png格式icon或者背景图

信念 2011-01-12

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windowOpacity : double

This property holds the level of opacity for the window.

The valid range of opacity is from 1.0 (completely opaque) to 0.0 (completely transparent).

By default the value of this property is 1.0.

This feature is available on Embedded Linux, Mac OS X, Windows, and X11 platforms that support the Composite extension.

This feature is not available on Windows CE.

Note that under X11 you need to have a composite manager running, and the X11 specific _NET_WM_WINDOW_OPACITY atom needs to be supported by the window manager you are using.

Warning: Changing this property from opaque to transparent might issue a paint event that needs to be processed before the window is displayed correctly. This affects mainly the use of QPixmap::grabWindow(). Also note that semi-transparent windows update and resize significantly slower than opaque windows.

Access functions:

qreal	windowOpacity () const

void	setWindowOpacity ( qreal level )

See also setMask().