在DirectDraw中显示位图。这个例子演示了如何在全屏模式中调用GDI，让用户确定显示图像，并在DirectDraw对象的表面上绘制此图像。-in DirectDraw showed bitmap. This example demonstrates how the full-screen mode called GDI, enabling users to identify and display images, and DirectDraw object on the surface m