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C28224

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This article applies to Visual Studio 2015. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

warning C28224: Annotation requires parameters

This warning indicates that the named annotation is used without parameters and at least one parameter is required. This should not be possible if the standard macros are being used for annotations; this warning is not expected to be seen in normal use.