Prototype

TNavigateEvent = procedure(Sender: TObject; aHome, aPrevious, aNext: boolean) of object;

Description

TNavigateEvent is the function type for an OnNavigate event.


Its main use is to enable or disable buttons on a toolbar. aHome determines whether a home button should be enabled. aPrevious determines whether a previous button should be enabled, if the current document/anchor is not the first entry in the history list. aNext for a next button does the same if it is not the last.

See also

TMDViewer.OnNavigate