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

IUnknown

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Basic interface for all COM-based interfaces

Declaration

Source position: objpash.inc line 259

type IUnknown = interface

  function QueryInterface();

  

Return pointer to VMT table of interface

  function _AddRef;

  

Increase reference count of the interface

  function _Release;

  

Decrease reference count of the interface

end;

Inheritance

IUnknown

  

Basic interface for all COM-based interfaces

Description

IUnknown is defined by windows. It's the basic interface which all COM objects must implement. The definition does not contain any code.

See also

IInterface

  

Basic interface for all COM based interfaces

IDispatch

  

Dispatch interface

IInvokable

  

Interface with RTTI associated with it.


Documentation generated on: Jun 22 2020