C#模拟鼠标点击

/// <summary>
/// 模拟鼠标点击
/// </summary>
[HostProtection(SecurityAction.LinkDemand, Resources = HostProtectionResource.ExternalProcessMgmt)]
public class MouseHelper
{
#region 鼠标相关属性

/// <summary>
/// 检查鼠标是否已经安装.
/// </summary>
public static bool MousePresent
{
get
{
return SystemInformation.MousePresent;
}
}

/// <summary>
/// 检查鼠标是否存在滚轮
/// </summary>
public static bool WheelExists
{
get
{
if (!SystemInformation.MousePresent)
{
throw new InvalidOperationException("没有找到鼠标.");
}
return SystemInformation.MouseWheelPresent;
}
}

/// <summary>
/// 获取鼠标滚轮每次滚动的行数
/// </summary>
public static int WheelScrollLines
{
get
{
if (!WheelExists)
{
throw new InvalidOperationException("没有找到鼠标滑轮.");

}
return SystemInformation.MouseWheelScrollLines;
}
}

#endregion

#region 鼠标操作函数
[DllImport("user32.dll")]
static extern void mouse_event(MouseEventFlag flags, int dx, int dy, uint data, UIntPtr extraInfo);

[Flags]
enum MouseEventFlag : uint
{
Move = 0x0001,
LeftDown = 0x0002,
LeftUp = 0x0004,
RightDown = 0x0008,
RightUp = 0x0010,
MiddleDown = 0x0020,
MiddleUp = 0x0040,
XDown = 0x0080,
XUp = 0x0100,
Wheel = 0x0800,
VirtualDesk = 0x4000,
Absolute = 0x8000
}

/// <summary>
/// 连续两次鼠标单击之间会被处理成双击事件的间隔时间。
/// </summary>
/// <returns>以毫秒表示的双击时间</returns>
[DllImport("user32.dll", EntryPoint = "GetDoubleClickTime")]
public static extern int GetDoubleClickTime();

/// <summary>
/// 检取光标的位置，以屏幕坐标表示。
/// </summary>
/// <param name="lpPoint">POINT结构指针，该结构接收光标的屏幕坐标。</param>
/// <returns>如果成功，返回值非零；如果失败，返回值为零。</returns>
[DllImport("user32.dll", EntryPoint = "GetCursorPos")]
public static extern int GetCursorPos(Point lpPoint);

/// <summary>
/// 把光标移到屏幕的指定位置。如果新位置不在由 ClipCursor函数设置的屏幕矩形区域之内，则系统自动调整坐标，使得光标在矩形之内。
/// </summary>
/// <param name="x">指定光标的新的X坐标，以屏幕坐标表示。</param>
/// <param name="y">指定光标的新的Y坐标，以屏幕坐标表示。</param>
/// <returns>如果成功，返回非零值；如果失败，返回值是零</returns>
[DllImport("user32.dll")]
public static extern int SetCursorPos(int x, int y);

#endregion

#region 封装函数
/// <summary>
/// 在当前鼠标的位置左键点击一下
/// </summary>
public static void MouseClick()
{
mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);
mouse_event(MouseEventFlag.LeftUp, 0, 0, 0, UIntPtr.Zero);
}

/// <summary>
/// 移动到坐标位置点击
/// </summary>
/// <param name="location">要点击的坐标位置,屏幕绝对值</param>
public static void MouseClick(Point location)
{
MouseMove(location);
mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);
mouse_event(MouseEventFlag.LeftUp, 0, 0, 0, UIntPtr.Zero);
}

/// <summary>
/// 移动到坐标位置点击
/// </summary>
/// <param name="location">要点击的坐标位置,屏幕绝对值</param>
public static void MouseRightClick(Point location)
{
MouseMove(location);
mouse_event(MouseEventFlag.RightDown, 0, 0, 0, UIntPtr.Zero);
mouse_event(MouseEventFlag.RightUp, 0, 0, 0, UIntPtr.Zero);
}

/// <summary>
/// 移动到坐标位置
/// </summary>
public static void MouseMove(Point location)
{
SetCursorPos(location.X, location.Y);
}
#endregion

}