Mouse middle button has strange effect in grids

[Stéphane Larouche]

The middle button seems to have a strange effect in grids. In particular, if I
hold it down it creates a visual selection of cells, like a range selection, but
that does not trigger a EVT_GRID_RANGE_SELECT event.

What I would like to do is that my grid completely ignores all click events on
the middle button. I have tried to catch EVT_MIDDLE_DOWN, EVT_MIDDLE_UP,
EVT_MIDDLE_DCLICK events. If I bind them to the grid, using
my_grid.Bind(EVT_MIDDLE_DOWN, my_event_handler), for example, I do capture some
events, but not all of them. I have not been able to figure out the logic behind
what events are captured and what events are not. If I bind them to the grid
window, using my_grid.GetGridWindow().Bind(EVT_MIDDLE_DOWN, my_event_handler),
for example, I do catch all middle button events, but even if I don't propagate
them (not using event.Skip()), a visual selection is still created.

Does anyone know a solution to that problem?

Thank you for your help.

Stéphane