Drawing QWidget in QPixelBuffer

[Merinas]

Hi,

I'hae read the Pixel Buffers Example but i want to draw a basic window and any kind of QWiget in his QPixelBuffer,then draw it with the QGLWidget. But this is down by this :
@ pbuffer->makeCurrent();
drawPbuffer();@

And I don't know how to do it with something else than an OpenGL content.

Thanks for reading this.