get PID of QProcess with python on windows

Question

Is there some way to read the PID of a process started with QProcess.start(...)? QProcess::pid() returns sip.voidptr and there's not much I can do with it (or I don't know how).

I want to have the PID to have the possibility to make the window active later on.

Bleeding Fingers · Accepted Answer · 2013-04-16 22:16:48Z

2

Try QProcess.startDetached since it spawns a standalone process, removing the possibility of sharing PID with its parent.

This might provide some you further insight.

answered Apr 16, 2013 at 22:16

Bleeding Fingers

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middleofdreams Over a year ago

I know that startDetached returns pid of new process... but is there possibility of catch finished() signal? Also... it is a separate process anyway... so I don't get why it is not simplified?

Spencer · Accepted Answer · 2017-03-16 02:31:13Z

0

Try:

proc = QtCore.QProcess().start(cmdOrWhaterver)
pid = int(proc.pid())

Not sure if this helps you or not but you can also try proc.setObjectName() which has worked for me when referencing a process after it has run for a bit.

that's for python anyway

edited Mar 16, 2017 at 2:31

answered Mar 13, 2017 at 2:19

Spencer

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Avo Asatryan · Accepted Answer · 2021-09-10 15:05:32Z

0

pid() function is provided to keep old source code working. Use processId() instead. Returns the native process identifier for the running process, if available. If no process is currently running, 0 is returned. Note: Unlike processId(), pid() returns an integer on Unix and a pointer on Windows.

answered Sep 10, 2021 at 15:05

Avo Asatryan

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