I'd like to know how to trigger my SLOT before QTimer actually times out.
Here's an example scenario:

we have a pump which if conditioned turns on. I have defined the pump life period in a timer. So, when the timer times out, pump turns off.
Here, I need to check when 83% of the pump life period passes, then I need to do some instructions (after 83% life period of pump).
finally when the whole pump life period passes it switches off.
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