QGLWidget renderPixmap and alpha channel

[omega]

Hi,
I was wondering if the QGLWidget renderPixmap function was taking into account the alpha channel ?
I tried to render a scene with glClearColor( 1, 0, 0, 0.5 ) in paintGL() but the pixmap returned by renderPixmap(0, 0, true) has no alpha. Am I missing something ?
Thanks.

[qtquiz]

I know it was a while back, but did you ever manage to solve this?