---
title: "_com_error::WCode | Microsoft Docs"
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ms.date: "11/04/2016"
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dev_langs: ["C++"]
helpviewer_keywords: ["WCode method [C++]"]
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---
# _com_error::WCode
**Microsoft Specific**  
  
 Retrieves the 16-bit error code mapped into the encapsulated `HRESULT`.  
  
## Syntax  
  
```  
  
WORD WCode ( ) const throw( );  
  
```  
  
## Return Value  
 If the `HRESULT` is within the range 0x80040200 to 0x8004FFFF, the **WCode** method returns the `HRESULT` minus 0x80040200; otherwise, it returns zero.  
  
## Remarks  
 The **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**  
  
## See Also  
 [_com_error::HRESULTToWCode](../cpp/com-error-hresulttowcode.md)   
 [_com_error::WCodeToHRESULT](../cpp/com-error-wcodetohresult.md)   
 [_com_error Class](../cpp/com-error-class.md)