Select multiple curves

[aimsc]

Hi,

I have a QwtPlot object with several QwtPlotCurves drawn in it. By connecting picker's "selected( const QwtDoublePoint & )" signal to my method, I can select one curve at a time and it works as expected.

Now I want to be able to select several of them by holding Shift while clicking on each of the curves but I've noticed that, while holding Shift, "selected" is never emitted (or at least my slot method is never called). Any idea on how to do that? I've checked the other signals, and even tried "void selected (const QwtArray< QwtDoublePoint > &pa)" as it expects an array of points, but same thing -i.e. nothing- happens.

My selection flags are set to PointSelection.

Thanks in advance!

[Uwe]

See QwtEventPattern.

Uwe

[aimsc]

Thanks, Uwe, but I already checked QwtEventPattern but still no clues on how to use it.

I tried something but it didn't work because of "selected" not being emitted while Shift was pressed. I'll try to post the code later (I don't have it at hand right now).