Tooltip to QwtSymbol ???

[jesse_mark]

Then I'm handling help events on the plot to show a tooltip based on the data from the picker

Can you please explain more...
what are the help events ??
The tooltip you are showing ?? are you using Tracker Text and qwttext ?? or what exactly u r using ??

the other thing how can i show the marker in plot coordinate, if you saw the example i put in the previous reply ??

Thank you soo much.

[wysota]

what are the help events ??

QHelpEvent

The tooltip you are showing ?? are you using Tracker Text and qwttext ?? or what exactly u r using ??

QToolTip::showText()

the other thing how can i show the marker in plot coordinate, if you saw the example i put in the previous reply ??

If you use a real marker then the downside is that the plot has to be replot each time you want to change the marker position (provided you don't want to mess up with the way the plot is rendered). A better way is to draw the marker on a separate layer (e.g. using an overlay widget) which doesn't influence the plot itself.