TextCtrl focus events in wxWidgets

[Simon Hibbs]

I have a simple form with some input values and some calculated values
in TextCtrl widgets.

What I would like to do is have the display update automaticaly when
the user changes one of the input fields, without having to click on a
'Calculate' button. I was thinking of having an update triggered when
one of the text Controlls loses focus, indicating that the user has
finished changing it's value.

I don't want to do an update on every character entry, as this would
create a lot of bogus/meaningless updates. There doesn't seem to be
such an event. Any ideas how I could implement this, or a similarly
user friendly behaviour?

Best regards,

Simon Hibbs