DirectGUI interfering with mouse wheel input

General Discussion
21

Not to say that I studied the DirectGui modules, but adding these two lines in direct/gui/DirectGuiGlobals.py after line 72 seems to do the trick.

WHEELUP = PGButton.getReleasePrefix() + MouseButton.wheelUp().getName() + '-'
WHEELDOWN = PGButton.getReleasePrefix() + MouseButton.wheelDown().getName() + '-'
from panda3d.core import *
import direct.directbase.DirectStart
from direct.gui.DirectGui import *

button = DirectButton(text = "Hello")

def myfunc(event): print "Wheel moved"
button.bind(DGG.WHEELUP, myfunc)
button.bind(DGG.WHEELDOWN, myfunc)

run()

I think the mouse wheel suppression is probably set in the low-level C++ classes. Just had a quick glance though.