I had a quick look. I confirm that TextModel keeps a value holder on the current selection interval, in the instance variable named ��selection', but apparently there is no API to register to notifications to that. I consider that a missing feature, so I think it is best that you add a bug report for that.

Exactly! I think so too: it's just missing, and has to be fixed. I'll open an issue

Thanks

��

In the mean time, I��m sure you could hack something together that registers your application for notifications of the value holder that is in ��selection�� ;-)

At least I can try to figure it out.��

Mark