Gtk--: Trouble with CList event _imp functions

[RNG <r gasch chello nl>]

Hi, 

I'm still having some trouble figuring out how to bolt a menu on top of a 
CList using inheritance. I have the following code in my CList based class:


void TFCListMainWin::select_row_impl (gint row, gint col, GdkEvent *e)
{
	GdkEventButton		btnEvent(*(GdkEventButton*)e);
	//d_menuHandle->popup (NULL, NULL, btnEvent.button, btnEvent.time);
}


gint TFCListMainWin::button_press_event_impl (GdkEventButton *e)
{
	if (e->button == 3)
		d_menuHandle->popup (NULL, NULL, e->button, e->time);
	return 0;
}


I want to bind a popup menu to my clist which is activated by the left 
mouse button. So far so good. But the button_press_event_impl method 
receives a GdkEventButton * as it's only parameter. 

Given the GdkEventButton argument, how can I determine which row and 
column the user actually clicked on?

Thanks a lot
--> Robert