Something like this works for me.

 Code:
;Show messagebox("Message", "Title", Style). Style is a combination of Yes and No (4) and Questionmark (32).
$click = MessageBox("Are you OK?", "Question", 36)

;Clicking Yes returns 6 and No returns 7.
If $click = "6"
	;Show message on screen.
	? "You clicked Yes"
Else
	;Show message on screen.
	? "You clicked No"
EndIf

Sleep 5
_________________________
Mart

- Chuck Norris once sold ebay to ebay on ebay.