Retrieves an interface and increments the reference count.
HRESULT NonDelegatingQueryInterface( REFIID riid, void **ppv);
Pointer to the interface.
Returns E_POINTER if ppv is invalid. Returns NOERROR if the query is successful or E_NOINTERFACE if it is not.
This member function provides an implementation of the INonDelegatingUnknown::NonDelegatingQueryInterface method. By default it passes out references to IDirectDrawSurface and then calls the CUnknown::NonDelegatingQueryInterface member function for base class interface references. Override this class to return interfaces added in the derived class.
Last updated on Tuesday, July 13, 2004
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