Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!rex!samsung!cs.utexas.edu!swrinde!ucsd!cacilj!paul
From: paul@cacilj.UUCP (Paul Close)
Newsgroups: comp.windows.x
Subject: Problems getting keyboard input
Message-ID: <1324@cacilj.UUCP>
Date: 1 Dec 89 23:11:06 GMT
Reply-To: paul@cacilj.UUCP (Paul Close)
Organization: CACI Products Company, La Jolla, CA
Lines: 29

I am currently having no success trying to rad characters from the keyboard.
I am using DECwindows, and the Xt toolkit.  Here's how I set up the keyboard
read:

    EventMask event_mask = KeyPressMask;

    XtAddEventHandler(w->graphics_widget, event_mask, FALSE, key_pressed, w);

where key_pressed is the routine to handle the key events and
w->graphics_widget is a widget obtained by calling DwtWindow.

Here is the widget hierarchy I use:

    w->shell_widget = XtCreateApplicationShell(title, topLevelShellWidgetClass,
    NULL, 0);
    w->main_widget = DwtMainWindow(w->shell_widget, "MainWindow", 0, 0, 0, 0);
    w->graphics_widget = DwtWindow(w->main_widget, "GraphicsWindow", 0, 0,
    width, height, w->callback);

I have implemented a "mouse button pressed" routine that is almost identical,
and it works just fine.  With keyboard events, however, the 'key_pressed'
handle never even gets called!  Do I need to do more than just
XtAddEventHandler?

Thanks,
-- 
Paul Close	paul@cacilj.CTS.COM 	...!{uunet, ucsd, crash}!cacilj!paul

    The Obi-wan Kenobi method:  "Use the Source, Luke"	-Jim Fulton