BCGControlBar Pro for MFC
virtual BOOL CBCGPFrameWnd::GetToolbarButtonToolTipText ( CBCGPToolbarButton pButton,
CString &  strTTText 

Called by the framework when a button's tooltip should be displayed.

pButtonA pointer to toolbar button.
strTTTextA string which receives a custom tooltip text.
Should return nonzero if the tooltip has been displayed. The default implementation returns 0.

You should override this function if you want to display tool tips for the toolbar buttons.