@event{EVT_SPLITTER_SASH_POS_CHANGING(id, func)}
The sash position is in the process of being changed.
May be used to modify the position of the tracking bar to properly
@event{EVT_SPLITTER_SASH_POS_CHANGING(id, func)}
The sash position is in the process of being changed.
May be used to modify the position of the tracking bar to properly