Path: utzoo!attcan!uunet!ginosko!gem.mps.ohio-state.edu!csd4.csd.uwm.edu!mailrus!ncar!gatech!ncsuvx!csl.ncsu.edu!harish
From: harish@csl.ncsu.edu (Harish Hiriyannaiah)
Newsgroups: comp.windows.x
Subject: Viewport Widget. (Athena tools)
Message-ID: <3692@ncsuvx.ncsu.edu>
Date: 17 Aug 89 22:37:14 GMT
Sender: news@ncsuvx.ncsu.edu
Reply-To: harish@csl.ncsu.edu (Harish Hiriyannaiah)
Distribution: na
Organization: North Carolina State University
Lines: 24

I am trying to use a viewport widget to display images. This widget has one
child - a box widget to which I spit the image data. While writing a call
back proc for the viewport widget, I need to access the child. I tried the
naive
	Childwidget = vpwidget->viewport.child;

It bombed of course. Am I missing something here ? 

Also, I am confused about the *.h and the *P.h header files. How does the
compiler figure out all the declarations and #defines in the *P.h files without
#includes ? Am I missing something obvious here ?

Please reply by e-mail if the answers are too trivial.

harish pu. hi.				harish@ecelet.ncsu.edu
					harish@ecebucolix.ncsu.edu




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