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);

        }