System.TObject.DefaultHandler
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Delphi Information
From System.pas
procedure DefaultHandler(var Message); virtual;
Unit: System
Type: method
Visibility: public
Member Of: TObject
C++ Information
From System.hpp
virtual void __fastcall DefaultHandler(void * Message);
Unit: System
Type: method
Visibility: public
Member Of: TObject
Description
Provides the interface for a method that processes message records.
DefaultHandler is called by Dispatch when it cannot find a method for a particular message. DefaultHandler provides message handling for all messages for which an object does not have specific handlers. Descendant classes that process messages override DefaultHandler according to the types of messages they handle.
Note: In a Delphi message-handling method, calling inherited results in a call to the ancestor's DefaultHandler method only if that ancestor does not specify a message method for the particular message being handled. Otherwise, calling inherited results in a call to the specific handler for that type of message.
See Also
Code Samples