Hi, i have to do a GUI that read data from a sensor using the serial port
and update the gui continuosly (possibly graph data).
I will start the process with a button and shall stop the process with the
same button y have the idea below:

 while(!stop)
      Read the data
      Refresh the gui elements (for example a progress bar)
end while

but the problem is that i have to listen the event for an Stop button, and i
get blocked doing the read and the refresh

Any idea????????
Thanks for helping

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