C#设置和恢复系统的鼠标指针

using System.Runtime.InteropServices;

[DllImport("User32.DLL")]

public static extern bool SetSystemCursor(IntPtr hcur, uint id);

public const uint OCR_NORMAL = 32512;

public const uint OCR_IBEAM = 32513;

[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 button1_Click(object sender, EventArgs e)

{

//设置

SetSystemCursor(Cursors.WaitCursor.CopyHandle(), OCR_NORMAL);

SetSystemCursor(Cursors.WaitCursor.CopyHandle(), OCR_IBEAM);

//..可以根据情况加

}

private void button2_Click(object sender, EventArgs e)

{

//恢复

SystemParametersInfo(SPI_SETCURSORS, 0, IntPtr.Zero, SPIF_SENDWININICHANGE);

}