Check for instances running



Hi!

I want to check if there's other instances of a GTK program running.

I'm doing a kind of a lock file, where i keep the process pid, and at the 
beginning of the program, i check i the file exist and if the pid is a valid 
process.

Is this the best way to do it?
Are there any better method, like specific gtk or glib functions?

Thanks


-- 
Regards,

Joćo Rainha



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