Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!mcgill-vision!bloom-beacon!EXPO.LCS.MIT.EDU!converse
From: converse@EXPO.LCS.MIT.EDU (Donna Converse)
Newsgroups: comp.windows.x
Subject: Re: help with XmCreateDrawingArea() ?
Message-ID: <8912192313.AA00362@expo.lcs.mit.edu>
Date: 19 Dec 89 23:13:10 GMT
References: <8912192251.AA27790@expo.lcs.mit.edu>
Sender: daemon@athena.mit.edu (Mr Background)
Organization: X Consortium, MIT Laboratory for Computer Science
Lines: 21


> i'm trying to port an X Lib application to Motif.
>	...
> when i try to create the graphics
> context with this window id, it comes back with a badDrawable
> error.
> 	drawingarea = XmCreateDrawingArea (...);
> 	XtManagechild (drawingarea);
>	...

  Call XtRealizeWidget (see section 2.5 of the Intrinsics)
  with an argument of your toplevel widget.  Windows of widgets are
  created when a widget is realized, not when a widget is created.
  Calling XCreateGC with a window ID of 0 (no window) would give 
  the type of error that you describe.
	
>	w = XtWindow (drawingarea);
>	XCreateGC (dpy, w, ...);


Donna Converse