>Use it how ?
>
>Anything goes as long as i can add a png with transparency (or semi-transparency) to an image control and not flickering ..
>Do you have a sample to get me started ?

Sorry, I should have been more clear; the alternative to rendering transparent shapes would be to use GDIPlusX objects to draw and fill shapes with (semi)transparent brushes. For PNGs, I don't think GDIPLusX would be any different.