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

TApplication.DoOnHelp

Signals an OnHelp event handler.

Declaration

Source position: forms.pp line 1481

protected function TApplication.DoOnHelp(

  Command: Word;

  Data: PtrInt;

  var CallHelp: Boolean

):Boolean; virtual;

Arguments

Command

  

Help command to handle in the event handler(s).

Data

  

Pointer to the help data used in the event handler(s).

Function result

True when the message was handled.

Description

Signals the OnHelp message handler. DoOnHelp tries the OnHelp handlers for the active form and the Application, as well as handler routines added for the ahtHelp handler type.

DoOnHelp is called from the HelpCommand method.

See also

TApplication.OnHelp

  

Event handler signalled when help is requested in the application.

TApplicationHandlerType

  

Types of Application notification handlers.