用bitblt的方法进行掩码运算，产生一个透明贴图的实现，循环贴图形成一个动画的效果-The method used bitblt mask operation, resulting in the realization of a transparent texture, the formation of an animation loop effect Texture

VC++经典案例，包括OpenGL中雾的应用，图像的缩放，透明的图像，用OPENGL实现简单动画，动画启动界面，使用DIB制作动画按钮等23个案列-VC++ classic case, including fog in OpenGL applications, image scaling, transparent image with OPENGL simple animation, animation start interface, DIB animate button 23 cases l

VC6 编写的透明窗体，非常经典。本例子是会动的表，还有其他动画-VC6 write transparent form, very classic. This example is the movement of the table, there are other animation