How can I create and use my own backbuffer with DXDraw1.Primary. My project's based on windowed mode and DoFlip option doesn't work. When I run the project I see flickers on the screen and I've decided to use a backbuffer to avoid but I don't have any idea how? Can you give me an example of backbuffer using in the DelphiX?

Note: DelphiX's help files don't give any information about it.