TIP: Click on subject to list as thread! ANSI
echo: os2prog
to: Jeff Dunlop
from: Peter Fitzsimmons
date: 1995-07-31 02:31:36
subject: Are miracles possible

JD> Is it possible to determine at runtime whether a 
 JD> program is being run under an
 JD> OS/2 debugger (Watcom's)? Not for copy protection :-) 
 JD> but rather to disable hardcoded breakpoints if there's 
 JD> nothing there to trap them.

I have not tried this yet,  but I was recently told this:

  Anyway, what I do to get round the problem (and you're going to HATE
  this) is to add this to the end of each thread:
 
         while (__WD_Present) {
            DosSleep (10000);
         }
 
  '__WD_Present' is an 'int' and assigned TRUE when the debugger loads.



--- Maximus/2 2.02p1
* Origin: Sol 3/Toronto (905)858-8488 (1:259/414)
SEEN-BY: 105/42 620/243 711/401 409 410 413 430 807 808 809 934 712/407 515
SEEN-BY: 712/628 704 713/888 800/1 7877/2809
@PATH: 259/414 400 99 250/99 3615/50 396/1 270/101 105/103 42 712/515 711/808
@PATH: 711/809 934

SOURCE: echomail via fidonet.ozzmosis.com

Email questions or comments to sysop@ipingthereforeiam.com
All parts of this website painstakingly hand-crafted in the U.S.A.!
IPTIA BBS/MUD/Terminal/Game Server List, © 2025 IPTIA Consulting™.