From: Seby <cartas AT ita DOT flashnet DOT it>
Newsgroups: comp.os.msdos.djgpp
Subject: Virtual functions in Interrupt ruotines
Date: Tue, 10 Jun 1997 19:27:07 +0200
Organization: Flashnet S.p.A.
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To: djgpp AT delorie DOT com
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Hi,
excuse my bad english......

*************** Please help me,i have a big
problem.************************

I'm writing a windowing system for DJGPP, and i'm developing the mouse
interface.
My problem is represented by a virtual drawing  functions write by
myself. When i use this functions inside the mouse handler , the program
generate a "general protection fault".
The handler run fine without this virtual functions....was correctily
istalled..

Is looked memory problem? i have looked all memory interested by
functions.....
I tried also to call a empty drawing routine...a ruotine without inside
code... is the same.. same error.
Then i think that is not the internal code (inside my routines) the
cause of the error, but must be other thing.....

Are virtual routines derived from 3 level classes.

*********************************************************************

Is too much important for me...thank you...

I want find  friends interested on any windowing system project, to
excange suggestion or experiences.

Goodbye!


Seby Carta.