Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!ucsd!tut.cis.ohio-state.edu!quanta.eng.ohio-state.edu!kcgl1.eng.ohio-state.edu!DAVISM
From: DAVISM@kcgl1.eng.ohio-state.edu (Michael T. Davis)
Newsgroups: comp.windows.x
Subject: Possible problem compiling HP widgets -- help!
Message-ID: <2588@quanta.eng.ohio-state.edu>
Date: 11 Jul 89 05:22:19 GMT
Sender: news@quanta.eng.ohio-state.edu
Organization: Ohio State University
Lines: 40


	I recently got a hold of the HP widget set for X11R3 and would really
like to start using them, but I'm having a few problems.  If anyone can shed
some light on this, I'd really appreciate it.

	First off, I'm doing all this under DECwindows on a color VAXstation
3100 w/ 8MB memory, running VMS V5.1-B.  (That's probably bad enough as it is,
right? ;-)  Anyway, as I don't have any kind of make utility, I more or less
attempted to glean what I needed from the makefile Xhp/Xw/Makefile.  I looked
at the list of object files and just generated all of them with a command pro-
cedure, then included them all in an object library.  The application I'm
trying to get to work needs to be linked with this library, as well as the
X (DECwindows) Toolkit library.  Everything compiles and links fine, as far as
I can tell.  When I run the program, though, I get the following error:

    X Toolkit Error: XtCreateWidget requires non-NULL widget class
    %DWT-F-DWTABORT, xtoolkit fatal error

The line this is bombing on looks like this:

    canvas = XtCreateManagedWidget ( "canvas", XwworkspaceWidgetClass,
     toplevel, NULL, 0 );

The program is from Douglas Young's book ("X Window Systems Programming and
Applications with Xt").

	Any and all help is appreciated.

							Thanks,
							 Mike

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