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Where Can I Look Up Win32 Error Codes?

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Applies to: yesVisual Studio noVisual Studio for Mac

Note

This article applies to Visual Studio 2017. 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

WINERROR.H in the INCLUDE directory of your default system installation contains the error code definitions for the Win32 API functions.

You can look up an error code by typing the code in the Watch window or the QuickWatch dialog box. For example:

0x80000004,hr

See also