Note the HRESULT return type, rather than the raising of exceptions. But more than that-since its base is IInspectable- IUriRuntimeClass is a Windows Runtime interface. * */ virtual HRESULT STDMETHODCALLTYPE get_AbsoluteUri(/* */_RPC_deref_out_opt HSTRING * value) = 0 Note the ABI namespace Windows::Foundation, and all other Windows namespaces, are declared by the SDK headers within the ABI namespace. #include Īnd here's a simplified example of one of the ABI types that you'll find in that particular SDK header. Here's an example of including one of these headers.
The Windows SDK headers in the folder "%WindowsSdkDir%Include\4.0\winrt" (adjust the SDK version number for your case, if necessary), are the Windows Runtime ABI header files. Regardless of programming language, client code interaction with a Windows Runtime object happens at the lowest level, with client language constructs translated into calls into the object's ABI.
This abstraction defines a binary interface (the Application Binary Interface, or ABI) that allows various programming languages to interact with an object. What is the Windows Runtime ABI, and what are ABI types?Ī Windows Runtime class (runtime class) is really an abstraction. In general, C++/WinRT exposes ABI types as void*, so that you don't need to include platform header files. You can use these techniques to interop between code that uses these two ways of programming with the Windows Runtime, or you can use them as you gradually move your code from the ABI to C++/WinRT.
#Microsoft abi inform how to
This topic shows how to convert between SDK application binary interface (ABI) and C++/WinRT objects.
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