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[PyQt] Pinch-zoom
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[PyQt] Pinch-zoom
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Hi, I started with designing an GUI application on Raspberry Pi 3, I am using PyQt4. For plotting graphs on that app I am using pytqgraph. At this point, I am testing the option to zoom/pan those graphs, not by mouse, but by using the multi-touch RPI screen (pinch-zoom). I made research, and tested some event functions that I found on internet,but my touch events are not detected.  Can please someone give me instructions.
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