System.Win.ComObj.TComObject.ObjQueryInterface
Delphi
function ObjQueryInterface(const IID: TGUID; out Obj): HResult; virtual; stdcall;
C++
virtual HRESULT __stdcall ObjQueryInterface(const GUID &IID, /* out */ void *Obj);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.Win.ComObj.pas System.Win.ComObj.hpp |
System.Win.ComObj | TComObject |
Description
Implements the QueryInterface method of the IUnknown interface.
QueryInterface queries whether the COM object supports a given interface specified by the IID parameter. QueryInterface is used as the implementation of the IUnknown QueryInterface method when the COM object (TComObject) is not part of an aggregate.