I Emmanuel,

I have implemented a cursor line selection to follow the points by using QCPItemLine.
Everything is working well...however it remain two strange things (bug?):
- the itemClick signal is never emitted but the selectionChangedByUser signal is emited well.
- When my vertical QCPItemLine (not selected) is close to the left or right limit of the chart and I want to select it in order to move it, nothing happen. The line is not selected and no signal are emitted.
- When my vertical QCPItemLine (already selected) is close to the left or right limit of the chart and I want to select it in order to move it, the signal is emitted.

Your help will be appreciated.
Regards.
Mohcine