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From: barnett@cc.ic.ac.uk (G.J. Barnett)
Newsgroups: comp.sys.mac.hypercard
Subject: XCMD Update screen HELP REQUIRED PLEASE
Message-ID: <1991Feb3.111602.15893@cc.ic.ac.uk>
Date: 3 Feb 91 11:16:02 GMT
Organization: Imperial College Computer Centre
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Originator: barnett@cc.ic.ac.uk
Nntp-Posting-Host: suns2cc


	I hope somebody can help with a problem I have come across. I
have an XCMD which calls a modal dialog, gets info from it, removes the
dialog, processes data for a bit, and then returns to hypercard. The
problem is that after my dialog has been removed, and the grafport set
back to hypercard the space where the dialog was stays blank. As the 
dialog is 2/3 of the screen size it is a real nuisance.
	Does anyone know if hypercard 1.2.5 (and hypercard 2.0)
ignores update screen events when it has handed control to an XCMD, and
if so how can you round it ? 

	If anyone has any ideas or mad fantasies please mail me at 
			barnett@cc.ic.ac.uk

	Thanks for the help in advance, and if I get any joy I'll post
the results.