Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!spool.mu.edu!uunet!fmrco!sy18337
From: sy18337@fmrco (Terry Traub)
Newsgroups: comp.windows.x.motif
Subject: Re: XmList question
Keywords: Motif XmList listbox XmListSetPos
Message-ID: <1991May24.151514.8012@fmrco>
Date: 24 May 91 15:15:14 GMT
Article-I.D.: fmrco.1991May24.151514.8012
References: <1991May16.190348.22823@fmrco>
Reply-To: sy18337@fmrco.UUCP (Terry Traub)
Distribution: comp.windows.x.motif
Organization: Fidelity Investment, Boston, MA 02109
Lines: 38

In article <1991May16.190348.22823@fmrco> sy18337@fmrco.UUCP (Terry Traub) writes:
>This is a question regarding XmList in Motif 1.0, X11R4 on SParcStations.
>
>I am using Motif listboxes in Browse Select mode to display some
>rather long lists.  I would like to let the user page through the list
>with keypad commands PgUp, PgDn, Home, and End, but only the Up and
>Down arrows are supported.
>
>I added a KeyPress event handler to intercept these other keystrokes, and
>it works pretty well, except that when I do an XmListSelectPos(w, 1, True) 
>(followed by XmListSetPos(w, 1)) to home the list, the reverse video bar
>moves to the desired location (1, in this case) but the highlight box stays
>where it was, and pressing Up or Down causes the reverse video bar to jump
>back down to the original location (one up or one down, actually).
>
>The question is, how do you force the listbox to completely reset to
>the position you want?  Clearly XmListSetPos() is not enough, though
>the documentation suggests otherwise.
>
>Also, does Motif 1.1.1's list box have this added functionality?  I hope there's
>a painless solution; our users, and I too for that matter, are accustomed
>to MS Windows' list boxes, which have much better keyboard support built in.
>
>Thanks for any help!!!
>
>Terry Traub
>Fidelity Investments
>uunet!fmrco!lanyard!ttraub


Update:  I implemented PageUp and PageDown by sending a bunch of Up Arrow
and Down Arrow keyPress events.  But it's rather slow.  Please, oh
please (loud, nasal whine), doesn't _anyone_ know how to change the position
in an XmList?  Do I really have to buy the source code to figure this out?

Terry Traub
Fidelity Investments
uunet!fmrco!lanyard!ttraub