[Interest] Detecting if the application is already running from another user account

[Igor Mironchik]

Hi,

I think that better to solve this task with shared memory... You can 
look at the example in QtCreator sources (qtsingleapplication.cpp)

On 03.06.2016 15:54, Etienne Sandré-Chardonnal wrote:
> But how can I test if another app is already running with 
> QSystemSemaphore? I can set a semaphore with a single ressource 
> (initial value = 1) and lock it, but there is a single method aquire() 
> which blocks forever if the value is 0. So I can just make the second 
> process freeze forever until the first one exits.
>
> 2016-06-03 12:54 GMT+02:00 Nye <kshegunov at gmail.com 
> <mailto:kshegunov at gmail.com>>:
>
>     Hello,
>     Have you tried a system semaphore? It should work in this case as
>     far as I know.
>
>
>
>
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