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I have searched this up rather a lot, but come up with no helpful results.
I am currently trying to program simple DirextX game for Windows 8 Metro, and have come across _In_ rather a lot. I’m just wondering what it is.
Also, I have seen a lot of the use of ^ as the pointer * which I found odd. On top of this, some classes have an interface of ref class MyClass, which I believe is for C# legibility.
Anyway, any help would be brilliant.
It is a SAL annotation, used for code analysis. The annotations themselves are defined as macros that, in normal builds, expand to nothing.
The
^andref classare features of C++/CX, a set of language extensions developed to make it easier to build Metro style apps for Windows 8 in C++. Neither is a part of standard C++. The documentation (linked previously) has links to tutorials and references describing the language extensions.