System.HelpIntfs.IExtendedHelpViewer
Delphi
IExtendedHelpViewer = interface(ICustomHelpViewer)
C++
__interface INTERFACE_UUID("{B0FC9366-5F0E-11D3-A3B9-00C04F79AD3A}") IExtendedHelpViewer : public ICustomHelpViewer
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
interface class |
public | System.HelpIntfs.pas System.HelpIntfs.hpp |
System.HelpIntfs | System.HelpIntfs |
Description
The Help Viewer provides methods to display Help topics specified by numeric context identifiers and by topic names.
IExtendedHelpViewer extends ICustomHelpViewer by adding methods to display Help topics specified by numeric context identifiers and by topic names:
- Topic name is a short string that uniquely identifies each topic provided by a Help Viewer. A topic name provides a simple way for an application to display a specific Help topic without searching for it.
- Context ID (context identifier) is an integer value that uniquely identifies each Help topic. Context IDs support context-sensitive Help by providing a value that associates forms and controls with their Help topics. You can associate a Help topic to a form or control simply by setting the Context ID of the topic in the form (control) HelpContext property.