System.HelpIntfs.ICustomHelpViewer.CanShowTableOfContents
Delphi
function CanShowTableOfContents : Boolean;
C++
virtual bool __fastcall CanShowTableOfContents() = 0 ;
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
function | public | System.HelpIntfs.pas System.HelpIntfs.hpp |
System.HelpIntfs | ICustomHelpViewer |
Description
Query support for the Table of Contents.
The Help System uses CanShowTableOfContents to determine which Help Viewers can display a Table of Contents. CanShowTableOfContents should return True if the Viewer is ready for a subsequent call to ShowTableOfContents. The Help System should not call ShowTableOfContents for a Viewer after CanShowTableOfContents returns False; if this occurs, the Viewer should raise an EHelpSystemException.
In order to use CanShowTableOfContents, insert in the uses clause of your application the Vcl.HtmlHelpViewer or another unit that provides an interface to the external Help viewer to use. For C++, you need to include the HTMLHelpViewer.hpp header file.