[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'Forms' (#lcl)

TApplication.OnHelp

Event handler signalled when help is requested in the application.

Declaration

Source position: forms.pp line 1763

public property TApplication.OnHelp : THelpEvent
  read FOnHelp
  write FOnHelp;

Description

OnHelp is a THelpEvent property with the event handler signalled (if assigned) when help is requested in the application. It is signalled from the DoOnHelp method when the ActiveForm does not have an assigned OnHelp event handler or does not respond the specified help command. It occurs before other application handlers using the ahtHelp handler type are notified.

See also

TApplication.DoOnHelp

  

Signals an OnHelp event handler.

TApplication.HelpContext

  

Shows context-sensitive help for the application.

TApplication.HelpKeyword

  

Shows help for the specified keyword.

TApplicationHandlerType

  

Types of Application notification handlers.
Version 3.2 Generated 2024-02-25 Home