I'm attempting to port a Python program from GTK2 to GTK3.
I understand the use of GDK_SMOOTH_SCROLL_MASK but can find no reference to an implementation of gdk_event_get_scroll_deltas().
It should be in Gdk.Event.get_scroll_deltas. If not, you should check your library version.
eric@hum:():~$ python3
Python 3.2.3 (default, Jun 25 2012, 23:10:56)
[GCC 4.7.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from gi.repository import Gdk
>>> "get_scroll_deltas" in dir(Gdk.Event)
True