Retrieves the 16-bit error code mapped into the encapsulated HRESULT.
WORD WCode ( ) const throw( );
If the HRESULT is within the range 0x80040200 to 0x8004FFFF, the
WCode method returns the HRESULT minus 0x80040200; otherwise, it returns zero.
WCode method is used to undo a mapping that happens in the COM support code. The wrapper for a
dispinterface property or method calls a support routine that packages the arguments and calls
IDispatch::Invoke. Upon return, if a failure HRESULT of
DISP_E_EXCEPTION is returned, the error information is retrieved from the
EXCEPINFO structure passed to
IDispatch::Invoke. The error code can either be a 16-bit value stored in the
wCode member of the
EXCEPINFO structure or a full 32-bit value in the
scode member of the
EXCEPINFO structure. If a 16-bit
wCode is returned, it must first be mapped to a 32-bit failure HRESULT.
END Microsoft Specific