[maemo-developers] GTK+ question with maemo 2.2

[From: Han]

Hi,

I am using Maemo 2.2 (Gregale) to develop a program on N770 (sorry I
don't have resources to upgrade to N800/900 yet.) .

So far so good until I start to use GtkScaleButton and
GtkVolumeButton. It seems that maemo 2.2 came with GTK+ 2.6 which does
not support GtkScaleButton and GtkVolumeButton.

My question is: can I upgrade GTK+ to newer versions (2.10 and up) and
still use maemo 2.2 (and scratchbox of course) to develop programs for
N770? will that cause any issues?

Thanks.
Han