public static extern bool SendMessage(IntPtr hWnd, int Msg, int wParam, ref CopyData lParam);
public static extern bool SendMessage(IntPtr hWnd, int Msg, int wParam, ref CopyData lParam);
public static extern bool SendMessage(IntPtr hWnd, int Msg, int wParam, ref CopyData lParam);
public static extern bool SendMessage(IntPtr hWnd, int Msg, int wParam, ref CopyData lParam);