I'm in the middle of my next (exciting) article for QL Today and I've
come across something unusual in WMAN under QPC. But first a "simple"
question.
When setting up a window, how do I set a couple of the loose items to
unavailable? I know how to do it in the working definition after the
window has been set up, but I think I need to do it in the status area
before I call WM_SETUP? If so, what's the offset for the loose items
into that area as opposed to the working definition? Or are they the
same? I can't find anything in the QPTR docs.
Ok, the weirdness. I have QPC running with a resolution of 1024 by 768.
I have a window defined as being 336 by 224 and a shadow depth of 2. The
window was set up using George's SETW utility, as usual.
When I draw the window on screen it appears, without a shadow. Strange.
What is even stranger is, I cannot move the window outside of the normal
512 by 256 window area. Even stranger, I notice that while the window is
on screen, a shadow - probably the missing one - is displayed over on
the far right of the screen outside the 512 by 256 window area.
There's nothing unusual in this window - 7 loose items, 6 information
windows, 1 application window (no menu yet) and that's about it. Every
other program I have moves happily around and keeps the shadow with it.
This one is puzzling!
When I trace the program execution, the call to iop_flim correctly
returns the 1024 by 768 at 0 by 0 settings for the maximum window limits.
Any clues?
By the way, QPC is running under Linux - as it always does. But the
problem also shows up under QPC on Windows XP as well.
I'm trawling through the window definition even as I type, but so far,
it all looks fine to me:
STOP PRESS SOLVED!
Got the b*gger! It seems that SETW, not the latest version, defines a
WORD for the window flag byte and the shadow depth byte. Because I was
using an older version (sorry George, I'll get it updated soon!) it was
generating thw wrong value for these two bytes.
In my stupidity, I set the word to $82 (aka 130) whihc set the shadow
depth to 130 instead of 2. The word should have been $8002 (aka 32270).
So, setting a "bonkers" shadow depth was the cause of my problem, the
shadow was hitting the window limits as I moved the window around while
the window itself appeared to be ok.
Cheers,
Norm.
--
Norman Dunbar
Dunbar IT Consultants Ltd
Registered address:
Thorpe House
61 Richardshaw Lane
Pudsey
West Yorkshire
United Kingdom
LS28 7EL
Company Number: 05132767
_______________________________________________
QL-Users Mailing List
http://www.q-v-d.demon.co.uk/smsqe.htm
