[fpc-pascal] Windows find out if an application already is running

Rainer Stratmann RainerStratmann at t-online.de
Sun Mar 15 21:15:48 CET 2009

that works with getlasterror = error_already_exists when try to create a 
second mutex.

Am Sonntag, 15. März 2009 21:00 schrieb dmitry boyarintsev:
> it's better to use named mutexes (supported on all Windows versions)
> to find out if there's another instance of the app running.
> do the following on application start:
> - create a named mutex (constant name)
> - try to lock the mutex (0 time waiting), if failed then there's
> another instance already running.
> Thanks,
> Dmitry
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