I have read some on this subject in the forum, but for me this is still very unsure regarding implementation.

I want my pushbutton to be like a chameleon and would have for background the zone over which it is disposed. So in fact they would look transparent.

The the question is which function should I call to get the QPixmap occupied my the background image and give it as initial value to the widget constructor ?

Hope you see why I try to do : use backgrounds and have transparent button disposed covering the menu labels for instance. It fills like you clicked on the baground image.