TInterfacedObject

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

TObject descendent implementing the IUnknown interface

Declaration

Source position: objpash.inc line 301

Type
  TInterfacedObject = class (TObject, IUnknown)
  protected
    FRefCount : LongInt;
    FDestroyCount : LongInt;
    function QueryInterface(const iid: TGuid; out obj) : LongInt;
    function _AddRef : LongInt;
    function _Release : LongInt;
  public
    destructor Destroy;  Override;
    procedure AfterConstruction;  Override;
    procedure BeforeDestruction;  Override;
    class function NewInstance : TObject;  Override;
    RefCount : LongInt;
  end
  ;

Description

TInterfacedObject is a descendent of TObject which implements the IUnknown interface. It can be used as a base class for all classes which need reference counting.

Members

Member	Type	Visibility	Description
AfterConstruction	Method	public	Handle reference count properly.
BeforeDestruction	Method	public	Check reference count.
Destroy	Method	public	Destroy interfaced object
FDestroyCount	Field	protected
FRefCount	Field	protected
NewInstance	Method	public	Create a new instance
QueryInterface	Method	protected
RefCount	Property	public	Return the current reference count
_AddRef	Method	protected
_Release	Method	protected

Inheritance

Class	Description
TInterfacedObject(IUnknown)	TObject descendent implementing the IUnknown interface

See also

Name	Description
IUnknown	Basic interface for all COM-based interfaces
LongInt	A signed 32-bits integer
LongInt	A signed 32-bits integer
LongInt	A signed 32-bits integer
TObject	Base class of all classes.