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Path: utzoo!utgpu!ac
From: ac@utgpu.UUCP
Newsgroups: comp.sys.m6809
Subject: Window Problems
Message-ID: <1987Apr24.154112.1399@gpu.utcs.toronto.edu>
Date: Fri, 24-Apr-87 14:41:12 EST
Article-I.D.: gpu.1987Apr24.154112.1399
Posted: Fri Apr 24 14:41:12 1987
Date-Received: Sat, 25-Apr-87 07:18:43 EST
Organization: University of Toronto Computing Services
Lines: 32
Checksum: 25666

   I too have been unable to get select to work.  My original work was done
with DISPLAY and ECHO commands but after Mike Knudsen's posting I tried
BASIC09.  Not only did my temporary window not go away but my system crashed.
It crashed so well that if the disk drive motors happened to still be turning
at the time of the crash, then they stayed turning.  I assume this means the
clock 'tick' routine is no longer getting control.  Eventually I got a very
stripped down version of the program to work after merging it with Runb.
If you haven't already guessed, I only have 128k.  (Mike, do you have 512k?).
I think I have seen this sort of hard death before on level II when it runs
short of memory.
   So.  I went back to playing with DISPLAY and ECHO.  After booting OS9 I
tried echoing messages to W1 and then W2 (using their default attributes).
Then I added various display commands each of which displayed 1b 21 to
a chosen window.  In all cases I tried, only the first display command 
actually had an effect. For example:

echo hi >/w1; display 1b 21 >/w1; echo ho >/w2; display 1b 21 >/w2

Results :
puts hi in window 1
selects window 1's screen for display and puts cursor in window 1
puts ho in window 2
BUT doesn't move cursor to window 2

I'm not sure if this a feature of the SELECT function, but it would seem
to severely limit the usability of the windows!

-- 

Name:     Mark Acfield (University of Toronto Computing Services)
Path:     ihnp4!utgpu!ac   
Alias:    ac@utoronto.bitnet