Catching ListCtrl Key Events

Ok, I'm confused here. I'm trying to catch the wx.EVT_KEY_DOWN or
wx.EVT_CHAR for a ListCtrl (actually a hybrid
ListView/CheckListCtrlMixin) to add shortcut keys to that ListCtrl,
but those events seem to be ignored (the function I bind to them never
gets called). I've looked at wx.EVT_LIST_KEY_DOWN, and while I can
actually trap this event, I can't find any way to get any information
out of the event object aside from the raw key code, so I can't tell
what modifier keys are being used.