Get Error Message from HRESULT

Need to look up the error string for an HRESULT code? Here’s some code to do so.

#include <comdef.h>

CString GetMsgForHresult(HRESULT hr)
CString cs;
CString msg = _com_error(hr).ErrorMessage();
cs.Format(_T("Error 0x%08x: %s"), hr, msg);
return cs;

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2 Responses to Get Error Message from HRESULT

  1. It looks like _com_error::ErrorMessage() uses FormatMessage internally.

  2. Pingback: Generate diagnostic message for HRESULT codes? | The Largest Forum Archive

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