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4/8/2010
Retrieves 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 ppvis invalid. Returns NOERROR if the query is successful or E_NOINTERFACE if it is not.
Remarks
This member function implements the INonDelegatingUnknown::NonDelegatingQueryInterfacemethod and passes out references to the IMediaSampleand IUnknowninterfaces.
Override this class to return other 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 |