The TBN_ENDADJUST notification message notifies a toolbar’s parent window that
the user has stopped customizing a toolbar. This message is sent in the form
of a WM_NOTIFY message.
TBN_ENDADJUST
pnmhdr = (NMHDR FAR *) lParam;
Parameters
pnmhdr
Pointer to an NMHDR structure that contains information about the
notification message.