Go to Setup, Destinations, Print codes, find the code that is associated with that window/document and remove it from the list. If a print code is removed from that list, when the user clicks on the Printer icon, Record, the code will no longer show in there.

Hello,

VanessaQ's answer should work.

To do what you initially wanted to do (disable with VIREBOUT), use the variable STDBOUT and the letter "I":
Call VIREBOUT(STDBOUT,"I") From GOBJET

Because the "supervisor" in $SETBOUT uses STDBOUT to add "E" in the CHAINE variable.

If you prefer to provide additional information to the user, you can use one of the following actions, too:
 

$ACTION
Case ACTION
    When "EXEACT"     : Gosub EXEACT
    When "AV_IMPRIME" : Gosub AV_IMPRIME
Endcase
Return
####################
$EXEACT
Case BOUT
When "I" : Infbox "Printing Disabled" : OK=0
Endcase
Return
####################
# Or
####################
$AV_IMPRIME
  Infbox "Printing Disabled"
  OK=0
Return