gtk - Screen change event on Linux desktop -


i need conceptual guide on particular task:

  1. i want able select particular rectangle on linux desktop using 2 points.
  2. then want create 1 event listener wait graphical change in particular rectangle
  3. log change

what quick , dirty way achieve if there 1 of course?

can done using bash script, shell , particular gtk interface (i'm targeting gnome3 desktop environment testing purposes)?

i implement in c or java latter , need basic hints on native level first linux desktop learning step.


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