远程桌面断开后，鼠标自动点击失效

Question

需要模拟鼠标定时点击，远程桌面开启时可以正常运行，点“×”断掉远程后，日志显示到点程序执行了，实际缺没有点击成功。

class MouseFlag
{
    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
    }

    [DllImport("user32.dll")]
    static extern void mouse_event(MouseEventFlag flags, int dx, int dy, uint data, UIntPtr extraInfo);

    [DllImport("user32.dll")]
    public static extern int SetCursorPos(int x, int y);

    public static void MouseLefClickEvent(int dx, int dy, uint data)
    {
        SetCursorPos(dx, dy);
        mouse_event(MouseEventFlag.LeftDown, dx, dy, data, UIntPtr.Zero);
        mouse_event(MouseEventFlag.LeftUp, dx, dy, data, UIntPtr.Zero);
    }
   
}

MouseLefClickEvent(100,100, 0);