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MTS and Passing Direct Reference

MTS and Passing Direct Reference

MTS objects clients should never have access to unsafe references. A client application should never be passed a direct reference to an MTS object. Once such a reference is passed outside the object’s context, it is no longer a valid reference. SafeRef function should be used by an object to obtain a reference to itself that’s safe to pass outside its context (say to a client). This function returns a reference to the context wrapper instead of a reference to the object itself. If this is not done, then the client application can make a call on the MTS object without going through the context wrapper. This defeats the interception scheme set up by the MTS run time. For example:

 Set MyObject = SafeRef (Me) and pass 
MyObject to the client application

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