利用API实现窗体淡入淡出特效

#region利用API实现窗体淡入淡出特效

//窗体淡入淡出特效

publicconstInt32AW_HOR_POSITIVE=0x00000001;//从左到右打开窗口

publicconstInt32AW_HOR_NEGATIVE=0x00000002;//从右到左打开窗口

publicconstInt32AW_VER_POSITIVE=0x00000004;//从上到下打开窗口

publicconstInt32AW_VER_NEGATIVE=0x00000008;//从下到上打开窗口

publicconstInt32AW_CENTER=0x00000010;

publicconstInt32AW_HIDE=0x00010000;//在窗体卸载时若想使用本函数就得加上此常量

publicconstInt32AW_ACTIVATE=0x00020000;//在窗体通过本函数打开后，默认情况下会失去焦点，除非加上本常量

publicconstInt32AW_SLIDE=0x00040000;

publicconstInt32AW_BLEND=0x00080000;//淡入淡出效果

[System.Runtime.InteropServices.DllImport("user32.dll",CharSet=System.Runtime.InteropServices.CharSet.Auto)]

publicstaticexternboolAnimateWindow(

IntPtrhwnd,//handletowindow

intdwTime,//durationofanimation

intdwFlags//animationtype

);

#endregion

//调用：

AnimateWindow(Form2.Handle,5000,AW_BLEND);//淡入窗体

//Application.ExitThread();

AnimateWindow(Form2.Handle,5000,AW_SLIDE|AW_HIDE|AW_BLEND);//淡出窗体