Called by the framework to determine whether a docking control bar can be scrolled vertically.
- Returns
- Should return TRUE if bTop is TRUE and a docking control bar can be scrolled up. Should return TRUE if bTop is FALSE and a docking control bar can be scrolled down.
You should override this method in a derived class in order to enable scrolling of a docking control bar content vertically.
- Parameters
-
bTop | If TRUE, the framework queries a docking control bar for availability of top scroll; If FALSE - for availability of bottom scroll. |