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 = 32512;

        [DllImport("User32.DLL")]
        public static extern bool SystemParametersInfo(uint uiAction, uint uiParam,IntPtr pvParam, uint fWinIni);

        public const uint SPI_SETCURSORS = 87;
        public const uint SPIF_SENDWININICHANGE = 2;

        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, 0, IntPtr.Zero, SPIF_SENDWININICHANGE);
        }