catching mouseMoveEvent on QwtPlot

**grantbj74** · 25th July 2012, 06:46

Is it possible to catch mouseMoveEvent without creating a new QwtPlot class?

I'm trying to move a QwtPlotMarker with a right mouse drag. The marker already moves with edit box changes.

**Uwe** · 25th July 2012, 07:20

Install an event filter for the plot canvas: see QObject::installEventFilter. In SVN trunk you find a new example "itemeditor" that shows how to drag plot items with the mouse.

Uwe

**grantbj74** · 30th July 2012, 06:14

So I need to install the latest build of the trunk to run this example? for QwtPlotOverlay etc.

I also had a go at installing Qwt on Fedora, to see the example, but ran into that conflict with /usr/lib/libqwt issue. Know of any qmake fixes?

All too tricky for me.