ULONG InternalAddRef( );
Return Value
A value that may be useful for diagnostics and testing.
Remarks
Increments the reference count of a nonaggregated object by 1. If the thread model is multithreaded, InterlockedIncrement is used to prevent more than one thread from changing the reference count at the same time.
CComObjectRootEx Overview | Class Members
See Also CComObjectRootEx::InternalRelease, InterlockedIncrement in the Win32 SDK