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2.2.18 HRESULT

An HRESULT is a 32-bit value that is used to describe an error or warning and contains the following fields:

  • A 1-bit code that indicates severity, where 0 represents success and 1 represents failure.

  • A 4-bit reserved value.

  • An 11-bit code, also known as a facility code, that indicates responsibility for the error or warning.

  • A 16-bit code that describes the error or warning.

For details on HRESULT values, see [MS-ERREF].

This type is declared as follows:

typedef LONG HRESULT; 

 
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