+long wxListMainWindow::FindItem( const wxPoint& pt )
+{
+ size_t topItem;
+ GetVisibleLinesRange(&topItem, NULL);
+
+ wxPoint p;
+ GetItemPosition( GetItemCount()-1, p );
+ if( p.y == 0 )
+ return topItem;
+ long id = (long) floor( pt.y*double(GetItemCount()-topItem-1)/p.y+topItem );
+ if( id >= 0 && id < (long)GetItemCount() )
+ return id;
+
+ return wxNOT_FOUND;
+}
+