Transparent background of QWidget

[sp]

hi,
I have two overlapping widgets. On top widget, I am drawing a line using qpainter. I want to make background of top widget transparent so that bottom widget is visible alongwith line from top widget. Plz suggest some way to achieve that.

[Rajesh.Rathod]

set stylesheet of top widget, use background-color:rgba(0,0,0,0); in stylesheet.
As you are doing painting yourself, it's little doubtful.

if above doesn't work then see below link.
http://qt-project.org/doc/qt-4.8/qwidget.html#transparency-and-double-buffering

[karankumar1609]

Can you please explain why you need Top widget to just draw a single line?