I was hoping something like the below would work, but even though I can grab the window, postmessage does not work.

DECLARE INTEGER FindWindow IN Win32API AS FindWindow STRING, STRING

lnwindow = FindWindow(0,tcTitle)
IF lnwindow > 0
   #DEFINE WM_KEYDOWN  0x0100

    DECLARE SHORT PostMessage IN user32; 
      INTEGER   hWnd,; 
      INTEGER   Msg,; 
      STRING  @ wParam,; 
      INTEGER   lParam 
 
	hwnd = lnwindow
	cmessage = 'password'+CHR(13)
	ReturnValue = PostMessage(hwnd, WM_KEYDOWN, @cmessage, 0)
	RETURN .T.
ELSE
	RETURN .F.
ENDIF