In the first of a two-part series, Jeff Prosise covers the all-important issues of COM security in terms of activation security and access security.
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ATL Coding Helpers
Some COM clients, including scripting clients, can only access the default (IDispatch) interface on an object. If your object wants to expose multiple interfaces to such clients, one solution is DISPID Encoding. In this week's ATL article, Andrew illustrates one technique for accomplishing this.
What exactly is a tear-off? Why you might want to use one, and how the ATL supports both regular and cached tear-off interfaces. Are they worth spending time on? In this article, Andrew teaches you everything you wanted to know about tear-off interfaces, but were afraid to ask.
Andrew illustrates the underlying mechanics of aggregation vs. containment in ATL, why you'd want to choose one technique over the other, and how each is supported by the ATL through macros and classes.
Some COM clients - including scripting clients - can only access the default (dispatch) interface on an object. If your object wants to expose multiple interfaces to such clients, one solution is DISPID Encoding. This article shows how to do it with the ATL.
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The Transactional File System (TxF), which allows access to an NTFS file system to be conducted in a transacted manner through extensions to the Windows SDK API. MFC 10, has been extended to support TxF and related technologies. This support allows existing MFC applications to be easily extended to support kernel transactions.
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Arun Karthick introduces you to the state machine model and shows you how to create a simple working state machine sample using the .NET framework in the C# language.