WINPRINT-SUPPORTED
The WINPRINT-SUPPORTED function checks if the host system supports the WIN$PRINTER library routine.
Syntax:
 CALL "WIN$PRINTER" USING WINPRINT-SUPPORTED                    GIVING returnCode  | 
Parameters:
WINPRINT-SUPPORTED  | Constant  |    | 
Return code:
returnCode can be any signed numeric data item and provides additional information:
1   | Operation successful.  | 
WPRTERR-UNSUPPORTED  | The WIN$PRINTER library routine is not supported.  | 
Note: currently, the WINPRINT-SUPPORTED function always returns 1 because the WIN$PRINTER library routine is supported on all platforms.