Hello.
How I can show on each QwtPlot own QwtPLotPicker (VLine)?
QwtPlotMarker is bad because for display him I need to do replot() , and there is no effectively because I have a lot of solid curves that hard to always replot...
So I need that one VLine was in all plots at pos.x() and when I move mouse left/rifgt VLine's in all plot will move too.
What I can do to do this?
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