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IErrorLookup::GetHelpInfo

  • Artikel

Returns the path of the Help file and the context ID of the topic that explains the error.

Syntax

HRESULT GetHelpInfo (
   HRESULT   hrError,
   DWORD     dwLookupID,
   LCID      lcid,
   BSTR *    pbstrHelpFile,
   DWORD *   pdwHelpContext);

Parameters

  • hrError
    [in] The code returned by the method that caused the error.

  • dwLookupID
    [in] The provider-specific number of the error.

  • lcid
    [in] The locale ID for which to return the Help file path and context ID.

  • pbstrHelpFile
    [out] A pointer to memory in which to return a pointer to a string containing the fully qualified path of the Help file. If there is no Help file or an error occurs, the returned value (*pbstrHelpFile) is a null pointer. The memory for this string is allocated by the provider and must be freed by the consumer with a call to SysFreeString.

  • pdwHelpContext
    [out] A pointer to memory in which to return the Help context ID for the error. If there is no Help file (*pbstrHelpFile is a null pointer), the returned value has no meaning.

Return Code

  • S_OK
    The method succeeded.

  • E_FAIL
    A provider-specific error occurred.

  • E_INVALIDARG
    pbstrHelpFile or pdwHelpContext was a null pointer.

  • E_OUTOFMEMORY
    The provider was unable to allocate sufficient memory in which to return the Help file path.

  • DB_E_BADHRESULT
    hrError was invalid.

  • DB_E_BADLOOKUPID
    dwLookupID was invalid.

  • DB_E_NOLOCALE
    The locale ID specified in lcid was not supported by the provider.

See Also

Reference

IErrorInfo::GetHelpContext

IErrorInfo::GetHelpFile

IErrorLookup::GetErrorDescription