QProcess, detect if process is already running?

SPlatten

Is there a way to check if a process is already running by looking up its name or path and if so can I get the PID of it?

I've searched for a solution and the results seem a bit vague.

jsulm

@SPlatten Not in Qt. I think you will need to use platform specific APIs or call command line tools like "ps" on Linux.

SPlatten

@jsulm , thank you, I've done this before not using Qt, I'll do the same again.

SPlatten

@jsulm , what would it take to prompt Qt to explorer this and implement a solution? It strikes me this is a gapping hole in the whole multi-platform solution as you say Qt doesn't currently support it, which means unfortunately that having in order to implement a multi-platform solution I need to resort to different solutions for each platform.

jsulm

@SPlatten said in QProcess, detect if process is already running?:

what would it take to prompt Qt to explorer this and implement a solution?

This is something you need to ask actual Qt developers as this is user forum. You can even file change request in Qt bug tracker. Checking whether there is a process executing a specific executable is a rare use case, so I doubt it has a high priority.

SPlatten

@jsulm, thank you, I will do that now. The implementation I wrote was in Java.

Bonnie

SPlatten

@Bonnie , thank you, I will take a look now.

aliks-os

@Bonnie Thanks, this is just what I was looking for!