Process a wxEVT_SASH_DRAGGED_RANGE event, when the user has
finished dragging a sash. The event handler is called when windows
with ids in the given range have their sashes dragged.
Process a wxEVT_SASH_DRAGGED_RANGE event, when the user has
finished dragging a sash. The event handler is called when windows
with ids in the given range have their sashes dragged.