Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!pacbell!att-ih!ihnp4!inuxc!iuvax!pur-ee!uiucdcs!uxc.cso.uiuc.edu!uxg.cso.uiuc.edu!dorner
From: dorner@uxg.cso.uiuc.edu
Newsgroups: comp.sys.mac.programmer
Subject: GetItemMark
Message-ID: <40600005@uxg.cso.uiuc.edu>
Date: 18 Mar 88 21:26:00 GMT
Lines: 28
Nf-ID: #N:uxg.cso.uiuc.edu:40600005:000:918
Nf-From: uxg.cso.uiuc.edu!dorner    Mar 18 15:26:00 1988



Does GetItemMark work?  I'm trying to toggle a check mark on and off in a
menu by seeing if the item is checked, and unchecking it if is, or checking
it if it is not.  Here's the code:

    /*
	Toggles the mark on a menu item.  Returns the final state of the item.
    */
    ToggleMark(theMenu,theItem)
    MenuHandle theMenu;
    int theItem;
    {
	char markChar;
	
	GetItemMark(theMenu,theItem,&markChar);
	SetItemMark(theMenu,theItem,(markChar==noMark) ? checkMark : noMark);
	return (markChar==noMark);
    }

GetItemMark ALWAYS puts noMark in markChar, whether or not there is a
checkmark by the item.  The SetItemMark call then puts a checkmark by
the item, and the routine returns 1.  Am I doing something wrong?

This is in LSC on an SE, for what that matters.
----
Steve Dorner, U of Illinois Computing Services Office
Internet: dorner@uxc.cso.uiuc.edu  UUCP: ihnp4!uiucuxc!dorner
IfUMust:  (217) 333-3339