[maemo-users] Gtk Entry limit entered chars

[From: Dmitry S. Makovey]

Hi everybody,

I've noticed that some applications are locking keyboard input only to a 
subset of characters which greatly simplifies input esp. if you have 
numeric fields. Default action in Hildon input is to capitalize first 
letter which also means - no numeric pad so I'd like to change that 
somehow for certain fields.

I've gone through all stuff relative to python:gtk.Entry and found 
pretty much nothing on it. I suppose there are some hildon helpers for 
that, but 
http://maemo.org/development/documentation/apis/3-x/python-maemo-3.x/ 
doesn't seem to mention them. What am I missing? (I know I could've 
started to dig into sources of those programs that do limit input to a 
character subset, however I don't remember now which ones did that and 
that might be C/C++ app which may or may not affect applicability for 
python).