CUnknown::NonDelegatingQueryInterface

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

Returns an interface and increments the reference count.

Syntax

HRESULT NonDelegatingQueryInterface(
  REFIID riid,
  void** ppv 
);

Parameters

• riid
  Reference identifier.

• ppv
  Pointer to the interface.

Return Value

Returns E_POINTER if ppv is invalid. Returns NOERROR if the query is successful or E_NOINTERFACE if it is not.

Remarks

This member function provides a base class implementation of the INonDelegatingUnknown::NonDelegatingQueryInterface method.

Override this class to return interfaces on the object in the derived class.

Requirements

Windows Embedded CE	Windows CE 2.12 and later
Windows Mobile	Windows Mobile Version 5.0 and later
Note	Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later