Creates an object that implements special marshalling behavior. This is a
helpler function that makes it easier to define objects with VTBLs that different
apartment model threads can access directly.
| LPUNKNOWN punkOuter,
||//Points to the stream from which the object is to be marshaled
| LPUNKNOWN punkMarshaler
||//The interface requested from the unmarshaled object
Specifies a pointer to the controlling IUnknown of the object that is going to
have the special marshaling behavior specified by the object this function
[out] On return, contains a pointer to the private IUnknown of an object that
implements this special marshaling behavior.
Indicates the marshaler was created successfully.
Indicates that the marshaler object could not be created.
CoCreateFreeThreadedMarshaler is a helper API that makes it easier to define an object that allows direct
access to its VTBL from multiple apartment-model threads of execution, and uses
standard marshaling if a reference to the object is sent to another process.
When there is a request for a pointer to an object, the marshal context of the
request is determined by the specified member of the MSHCTX enumeration. When
the marshal context is MSHCTX_INPROC, meaning that the pointer to the object
need only be marshaled across different threads in the same process, the marshal
code only has to copy the pointer to the interface being marshaled into the
marshaling stream. For any other marshaling context, use standard marshaling to
complete the operation.
implements code that defines this context-dependent behavior, and, on return,
writes to its punkMarshaler
parameter a pointer to the private unknown for a object that does this
standard type of marshaling. The function then aggregates this marshaler object with
the object that should have this marshaling behavior.
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