How to play or pause the mplayer using the play and pause buttons of Qt window, if I know the process id? Is there any command to stop and pause using PID?
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If you do not want to be multiplatform, in Linux you can use SIGSTOP to pause and SIGCONT to continue.
For example to stop process with PID 123:
kill -SIGSTOP 123
And then continue:
kill -SIGCONT 123
This is not directly portable to other platforms (majority of mobile phones, Windows).
Olli
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