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CTransformOutputPin::NonDelegatingQueryInterface

  • Article

Retrieves an interface and increments the reference count.

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

Parameters

  • riid
    Reference identifier.
  • ppv
    Pointer to the interface.

Return Values

Returns E_POINTER if ppv is invalid. Returns NOERROR if the query is successful. If the query is unsuccessful and the requested interface is IMediaPosition or IMediaSeeking, returns an HRESULT from a call to CreatePosPassThru. If the query is unsuccessful and the interface is not IMediaPosition or IMediaSeeking, returns E_NOINTERFACE.

Remarks

This member function implements the INonDelegatingUnknown::NonDelegatingQueryInterface method. It overrides the CBasePin::NonDelegatingQueryInterface member function and passes references to the IPin, IQualityControl, IMediaPosition, IMediaSeeking, and IUnknown interfaces. Override this class to return other interfaces on the object in the derived class.

Requirements

DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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Last updated on Wednesday, April 13, 2005

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