CAggDrawSurface::NonDelegatingQueryInterface (Compact 2013)
3/26/2014
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 ppv is invalid.
Returns NOERROR if the query is successful or E_NOINTERFACE if it is not.
Remarks
This member function provides an implementation of the INonDelegatingUnknown::INonDelegatingUnknown 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.
Requirements
Header |
dshow.h, |
Library |
ole32.lib, |