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Article #3501

Some bugs in svgaxxxx.bgi driver?

#3501
From: Paul Vedin
Date: Mon, 05 Oct 1992 06:07
29 lines
1680 bytes
During last month I intensively used the Jordan svgaxxxx.bgi drivers, and
now have to say: it's great!

Some discovered nonconsiderable bugs, IMHO, don't crush this opinion.

1. When I hide mouse cursor (FN 2, int 0x33), then change cursor shape (FN 9),
garbage appears on screen.

2. After using FN 9 int 0x33 mouse hot spot always remains at point (0, 0)

3. When I try to out text string (System font only!) to the viewport
setting EXACTLY to the rectangle, occupied by this string, text does not
appear.

4. When I used mouse in standard VGA 320x200x256 0x13 mode
(without svgabgi drv), all x-coords of mouse-movement functions needs to
be recalculated (divided by 2). New svgaxxxm.bgi driver don't require
such recalculations (IMHO: it'is good! but...), so it may cause a situation,
when some old "mouse-oriented" programms (or parts of programms) would not
work correctly.

With best wishes. Paul.

PS. Ah, ya... I use svga256m.bgi driver on TRIDENT SVGA, 512K.
-- 
Paul Vedin:     paul@gst.kiev.ua		(Relcom)
    		paul%gst.kiev.ua@relay.ussr.eu.net    (Internet)
Applied Informatics Institution, Graphical Interface Dept.
Kiev, Ukraine (+7 (044) 221-27-94)
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From: paul@gst.kiev.ua (Paul Vedin)
Newsgroups: comp.os.msdos.programmer
Subject: Some bugs in svgaxxxx.bgi driver?
Message-ID: <AIMkzpgaU9@gst.kiev.ua>
Date: 5 Oct 92 06:07:18 GMT
Sender: news-server@kiae.su
Reply-To: paul@gst.kiev.ua
Organization: Applied Informatics Institution, Kiev, Ukraine
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