hi

I'm trying to do an Autodesk Sketcbook style pie-menu, where icons hover around a center point without a donut/circle shaped background and selection is marked by a line drawn from center of the pie to cursor position.
So far, I have everything working, except getting completely rid of the the background. Masking out everything except the icons solves most of the problem, but then I can't draw the line from center to cursor position.
I have tried setting widget's background color role to point to a transparent color, and setting Qt::WA_NoSystemBackground attribute , but no luck. From one source I understood that transparency does not work on all GUI styles, so I tried chancing that, but that didn't work.

Do you have any hints how to solve this? I'm using Qt 4.2 (could chance to 4.3 if that helps) on WindowsXP.