DirectDraw and MDI

Question

is there any way to draw in a MDI child form. As soon as i make a MDI window the directdraw functions throws a Graphicsexception in drawinternal(...) Does anyone know a work-around/solution for this?

Answer 1

The exception occurs in drawinternal, this is not a method of directdraw, but an internal directdraw method. I just don't see a way to show the graphics on the MDI child. Catching the exception just does not fix the problem: We can not adress the drawinternal function directly. By the way: when use a normal form the application runs fine.. the problem really lies in the combination MDI with directdraw..

Answer 2

You will have to handle the exception. There's no workaround for lost surfaces or loss of the drawing device that occurs when another window activates.