Hi, I want to develope a graphicintensive application. It should be hardwareaccelerated with DirectX. Also it must looking good, so I use a LayeredWindow for nice shadoweffects.

But now I have a big problem, because I cannot draw with DX on a LayeredWindow. So I search for a possibility to render with DX into a bitmap, so I can use it for the layeredwindow. I found a way to get a stream of the rendersurface, but this brings up my processor to 100%, because I must render the layeredwindow up to 75 times per second.

Thank you, if you can help me, or you know a better way to draw with DirectX a Window with unregular Border and Shadows.