How to avoid multiple instances of a program in NT and 95?

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#2923

From: Alois Buecherl
Date: Mon, 03 Feb 1997 00:00

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Hello,
I've been striving for so long now to find a SAVE way to start only one 
instance of my C++ program under Windows NT and 95. As you might recall, this 
used to be that easy in Windows 3.1 using the prevInstance variable. Now this 
option is gone.
I've tried using a semaphore that get's locked when the programm's up. But
it still can happen, that the program starts up more than once when multiple 
prgram spawns occur very rapidly. The program then did not get enough 
startup-time to create and lock the semaphore. 
Is there ANY solution to this problem?

Any hint into a possibly right direction would be greatly appreciated!

Alois

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From: Alois.Buecherl@terraSat.de (Alois Buecherl)
Subject: How to avoid multiple instances of a program in NT and 95?
Date: 1997/02/03
Message-ID: <5d4eeb$n6u$1@euler.space.net>
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organization: terraSat GmbH
newsgroups: comp.os.ms-windows.programmer.misc,comp.os.ms-windows.programmer.win32,de.comp.os.ms-windows.programmer,fido.ger.windows.prog,