说明：  在windows下大家也许能实现位图的半透明，但是你能在wince下实现位图的半透明化吗？ 做这个得花得点时间，所以经过一段时间的阅读，终于实现了在WINCE下实现位图的半透明化，这里仅提供一个函数，供大家参考，我想足够让你实现在WINCE下的位图半透明化了
(under the windows you may be able to achieve the translucent bitmap, But you can wince under bitmap of the translucent? So they have to spend this point in time, after a period of time of reading, finally realized its WINCE Bitmap under the translucent, here provided only a function, for your reference, I would like to let you achieve enough in the WINCE bitmap of a translucent)