Visual Studio Notes Errors

Visual Studio Notes Errors

MS First 500 Error numbers.[1]

Uses FormatMessage[2]

MS All Error Messages[3]

SystemErrorMessageToCString formats the error message and returns it as a CString.

CString SystemErrorMessageToCString(DWORD dwErr)
{
	CString result_cs;
    WCHAR   wszMsgBuff[512];  // Buffer for text.

    DWORD   dwChars = 0;  // Number of chars returned.

    // Try to get the message from the system errors.
    dwChars = FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM |
                             FORMAT_MESSAGE_IGNORE_INSERTS,
                             NULL,
                             dwErr,
                             0,
                             wszMsgBuff,
                             512,
                             NULL );


    // Display the error message, or generic text if not found.
	result_cs.Format( _T("Error value: %d Message: %ws"), dwErr, wszMsgBuff);
	return result_cs;
}
printf( " last error is: %S ", 	SystemErrorMessageToCString( 0 ) );
printf( " last error is: %S ", 	SystemErrorMessageToCString( 1 ) );
printf( " last error is: %S ", 	SystemErrorMessageToCString( 2 ) );
printf( " last error is: %S ", 	SystemErrorMessageToCString( 3 ) );
printf( " last error is: %S ", 	SystemErrorMessageToCString( 4 ) );

Output:
  last error is: Error value: 0 Message: The operation completed successfully.
  last error is: Error value: 1 Message: Incorrect function.
  last error is: Error value: 2 Message: The system cannot find the file specified.
  last error is: Error value: 3 Message: The system cannot find the path specified.
  last error is: Error value: 4 Message: The system cannot open the file.

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