transparency, setMask, createHeuristicMask, createMaskFromColor, QPixmap

[haldrik]

The most common approach is to grab the desktop widget, and draw its contents onto your widget's background. Some people combine this with the Qt::WA_NoSystemBackground flag, which prevents the window system from auto-filling the widget background for every paint event (i.e., you're drawing onto what was there before). It's not a perfect solution by far, but it's what many do today.

Hi Bitto, how can I get this approach?
Could you please show me a little example?

[marcel]

It has already been done on Windows.

Go and download the sources from this thread :http://www.qtcentre.org/forum/f-qt-p...highlight=argb

regards