c# WInform 窗口启动特效,使用win32 api

c# WInform 窗口启动特效,使用win32 api

一段使用api的窗口特效代码.自己可以试下,是不是在窗口显示的时候会显示各种特殊效果.有点惊喜的感觉

[System.Runtime.InteropServices.DllImport("user32")]         private static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags);         private const int AW_HOR_POSITIVE = 0x0001;// 从左向右显示         private const int AW_HOR_NEGATIVE = 0x0002;// 从右向左显示         private const int AW_VER_POSITIVE = 0x0004;// 从上到下显示         private const int AW_VER_NEGATIVE = 0x0008;// 从下到上显示         private const int AW_CENTER = 0x0010;// 从中间向四周         private const int AW_HIDE = 0x10000;         private const int AW_ACTIVATE = 0x20000;// 普通显示         private const int AW_SLIDE = 0x40000;         private const int AW_BLEND = 0x80000;// 透明渐变显示           private void Form1_Load(object sender, System.EventArgs e)         {                   int animatetype = 10;             Random a = new Random();             int dwFlags = (int)a.Next(animatetype);             switch (dwFlags)             {                 case 0:// 普通显示                     AnimateWindow(Handle, 1000, AW_ACTIVATE);                     break;                 case 1:// 从左向右显示                     AnimateWindow(Handle, 1000, AW_HOR_POSITIVE);                     break;                 case 2:// 从右向左显示                     AnimateWindow(Handle, 1000, AW_HOR_NEGATIVE);                     break;                 case 3:// 从上到下显示                     AnimateWindow(Handle, 1000, AW_VER_POSITIVE);                     break;                 case 4:// 从下到上显示                     AnimateWindow(Handle, 1000, AW_VER_NEGATIVE);                     break;                 case 5:// 透明渐变显示                     AnimateWindow(Handle, 1000, AW_BLEND);                     break;                 case 6:// 从中间向四周                     AnimateWindow(Handle, 1000, AW_CENTER);                     break;                 case 7:// 左上角伸展                     AnimateWindow(Handle, 1000, AW_SLIDE | AW_HOR_POSITIVE | AW_VER_POSITIVE);                     break;                 case 8:// 左下角伸展                     AnimateWindow(Handle, 1000, AW_SLIDE | AW_HOR_POSITIVE | AW_VER_NEGATIVE);                    break;                 case 9:// 右上角伸展                     AnimateWindow(Handle, 1000, AW_SLIDE | AW_HOR_NEGATIVE | AW_VER_POSITIVE);                     break;                 case 10:// 右下角伸展                     AnimateWindow(Handle, 1000, AW_SLIDE | AW_HOR_NEGATIVE | AW_VER_NEGATIVE);                     break;             }         }           private void Form1_FormClosing(object sender, System.ComponentModel.CancelEventArgs e)         {             AnimateWindow(this.Handle, 1000, AW_SLIDE | AW_HIDE | AW_VER_NEGATIVE);         }