C#开发分享：如何改变系统鼠标样式

开发过程中发现需要用到改变鼠标样式（就是光标的样子），但是在网上找了很多资料，都是介绍在程序中使用，我需要的效果时在系统级使用。现在找到了，分享给大家。

         [DllImport("user32")]
         private static extern IntPtr LoadCursorFromFile(string fileName);
 
         [DllImport("User32.DLL")]
         public static extern bool SetSystemCursor(IntPtr hcur, uint id);
         public const uint OCR_NORMAL = ;
 
         [DllImport("User32.DLL")]
         public static extern bool SystemParametersInfo(uint uiAction, uint uiParam,IntPtr pvParam, uint fWinIni);
 
         public const uint SPI_SETCURSORS = ;
         public const uint SPIF_SENDWININICHANGE = ;
 
         private void button_Click(object sender, RoutedEventArgs e)
         {
             //设置
             IntPtr iP = LoadCursorFromFile(@"D:\My Files\图片\cursor.cur");
             SetSystemCursor(iP, OCR_NORMAL);
         }
 
         private void button1_Click(object sender, RoutedEventArgs e)
         {
             //恢复
             SystemParametersInfo(SPI_SETCURSORS, , IntPtr.Zero, SPIF_SENDWININICHANGE);
         }