Path: utzoo!utgpu!bnr-vpa!bnr-fos!leibniz.uucp!cls
From: cls@leibniz.uucp (Carol Sullivan)
Newsgroups: comp.sys.mac
Subject: video windows on the mac
Message-ID: <369@bnr-fos.UUCP>
Date: 23 Mar 89 20:05:18 GMT
Sender: news@bnr-fos.UUCP
Reply-To: cls@leibniz.uucp (Carol Sullivan)
Organization: Bell-Northern Research, Ottawa, Canada
Lines: 22

We are developing a 24 bit hardware card that streams video to 
conventional Mac windows. Clearly the H/W will have to be 
reprogrammed whenever the on screen window geometry changes so 
as to cause occlusion or exposure of our H/W painted VisRgn, or for 
that matter, the video window is dragged, resized etc. 

Our window event notification requirements are obviously more 
stringent than the usual static window user's. However, we are 
hopeful that there is some simple means for us to obtain the 
required extra information that does not seriously compromise our 
"hands off" approach to the Mac O.S.  

Any ideas concerning how we may obtain the needed information 
would be greatly appreciated.

Thanks, 

     Ray McNamara 

(613)	763-8670
Dept 1P21
Bell-Northern Research