一个打开窗体时候的特效代码，渐入渐出打开窗体，主要是使用 AnimateWindow函数实现，显示窗口特殊效果以及位图上下文菜单代码。 -When the effects of an open form code, gradually fade out into the open the form, mainly the use of AnimateWindow function implementation, display window, special effects and bitm