static extern int SendMessage( IntPtr hwnd, int wMsg, int wParam, ref CAPSTATUS lParam );
static extern int SendMessage( IntPtr hwnd, int wMsg, int wParam, ref CAPSTATUS lParam );
static extern int SendMessage( IntPtr hwnd, int wMsg, int wParam, ref CAPSTATUS lParam );
static extern int SendMessage( IntPtr hwnd, int wMsg, int wParam, ref CAPSTATUS lParam );