How to let the SDL draw in the QT's widget(windows)

Hello all,
I can draw the picture or YUV video to the QT’ windows by the
SDL,following :
char SDL_windowhack[32];
sprintf(SDL_windowhack,“SDL_WINDOWID=%d”, mainwindow->winId());

But I only want to draw the picture or YUV video in the QT's widget or a 

MFC’s widget(such as a Frame or other widget), Can the SDL work it? how to
do it? I search the maillist ,but seem to no one tried to do it. Could you
help me ? Thank you!_________________________________________________________________
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