CEnumMediaTypes::QueryInterface (Compact 2013)
3/26/2014
Retrieves a pointer to a specified interface on a component to which a client currently holds an interface pointer.
Syntax
HRESULT QueryInterface(
REFIID iid,
void** ppvObject
);
Parameters
- iid
Specifies the IID of the interface being requested.
ppvObject
Receives a pointer to an interface pointer to the object on return.If the interface specified in iid is not supported by the object, ppvObject is set to NULL.
Return Value
Returns S_OK if the interface is supported, S_FALSE if not.
Remarks
This member function implements the IUnknown::QueryInterface method and passes out references to the IEnumMediaTypes interface.
Override this class to return other interfaces on the object in the derived class.
Requirements
Header |
dshow.h, |
Library |
ole32.lib, |