Brew MP 1.0.2
This function queries an interface for an alternate interface that may
provide extended functionality or a proprietary extension. If successful,
the function will return a pointer to the requested interface in the memory
location pointed to by the 'd' parameter. The requested interface is
identified by a globally unique ID passed to the function in the 'c'
Pointer to the ITransition2 interface object.
A globally unique id that identifies the interface to be queried.
Pointer to a pointer returned by the function to reference the interface
requested by the 'c' parameter. If the queried item is not available,
this pointer is returned as NULL.
int ITransition2_QueryInterface(ITransition2 *pif, AEECLSID c, void **d)
AEE_SUCCESS - The requested interface was found and has been returned
in the 'd' parameter.
AEE_ECLASSNOTSUPPORT - The requested interface is not supported.
Upon successful retrieval of an interface pointer, that interface is
returned with its reference count incremented. The caller is responsible
for releasing this object at some point in the future.