Returns the value of the PROMPT_KEYBOARD field currently in the
       data access block (DAB). PROMPT_KEYBOARD is the keyboard ID used
       for prompting.

       FN$PROMPT_KEYBOARD allows you to add other functions that access
       other capabilities of the Screen Management Guidelines (SMG) of
       the Screen Management facility.

       This function is not available in a DECwindows Motif environment.

1  –  Input

       None.

2  –  Output

       A longword value of the PROMPT_KEYBOARD field.

3  –  Example

       DTR> DECLARE PROMPT_KEYBOARD LONG.
       DTR> PROMPT_KEYBOARD = FN$PROMPT_KEYBOARD