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From: kit@EXPO.LCS.MIT.EDU (Chris D. Peterson)
Newsgroups: comp.windows.x
Subject: Re: User written widget problem
Message-ID: <9006121804.AA20224@expo.lcs.mit.edu>
Date: 12 Jun 90 18:04:19 GMT
References: <983@s5.Morgan.COM>
Sender: root@athena.mit.edu (Wizard A. Root)
Organization: The Internet
Lines: 24


> ... illustrating
> the management of children's geometry, etc. While I've been able to compile
> this without a problem, I consistently get:

>      X Toolkit Error: Unresolved inheritance operation

This usually occures when you have a new class method in your widget, and a
sbuclass of this widget has asked to inherit it.  The widget that defines 
the method is responsible for replacing the XtInherit<something> with the proper
function.  This is done in the ClassPartInitialize function.  You can check the
R4 Athena widget set for some examples of this.  Offhand I know that the Form
widget and the TextSrc Object both have inheritable class Methods.

Oh yea, This can also happen if you are passing XtInherit to some class method
that can not handle being inherited.


						Chris D. Peterson     
						MIT X Consortium 

Net:	 kit@expo.lcs.mit.edu
Phone:   (617) 253 - 9608	
Address: MIT - Room NE43-213