WinForm中鼠标自动移动到窗体中间，并模拟左键点击

 private void btnGetusernamebymobile_Click(object sender, EventArgs e)
  {

     int winHeight = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Height;
                int winWidth = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Width;
               Point centerP = new Point(winWidth / 2, winHeight / 2);
                Cursor.Position = centerP;
                mouse_event(MouseEventFlag.LeftDown, centerP.X, centerP.Y, 0, UIntPtr.Zero);
               mouse_event(MouseEventFlag.LeftUp, centerP.X, centerP.Y, 0, UIntPtr.Zero);
}

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