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C28216

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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 C28216: The _Check_return_ annotation only applies to post-conditions for the specific function parameter.

The _Check_return_ annotation has been applied in a context other than __post; it may need a __post (or __drv_out) modifier, or it may be placed incorrectly.