CRichEditCtrl :: GetLine功能不适用于Charaters< 4

问题描述

在visual studio 2008中，当我尝试在富文本框中写入少于4个字符时，它会给出异常（下面是附件）在进行调试时，我们发现Ensure（）导致异常：

 
  int CRichEditCtrl :: GetLine（_In_ int nIndex，_Out_writes_to_（nMaxLength，return）LPTSTR lpszBuffer，_In_ int nMaxLength）const 
 {
 ASSERT（:: IsWindow（m_hWnd））; 
 ENSURE（sizeof（nMaxLength）< = nMaxLength * sizeof（TCHAR）&& nMaxLength> 0）; 
 *（LPINT）lpszBuffer = nMaxLength; 
 return（int）:: SendMessage（m_hWnd，EM_GETLINE，nIndex，（LPARAM）lpszBuffer）; 
} 
  
解决方案
 
 
In visual studio 2008, When I am trying to write less than 4 characters in Rich Text Box, it gives exception (below is the attachment) After doing Debugging, we came to know that Ensure() is causing the Exception:
int CRichEditCtrl::GetLine(_In_ int nIndex, _Out_writes_to_(nMaxLength, return) LPTSTR lpszBuffer, _In_ int nMaxLength) const    {        ASSERT(::IsWindow(m_hWnd));        ENSURE(sizeof(nMaxLength)<=nMaxLength*sizeof(TCHAR)&&nMaxLength>0);        *(LPINT)lpszBuffer = nMaxLength;        return (int)::SendMessage(m_hWnd, EM_GETLINE, nIndex, (LPARAM)lpszBuffer);    }
 解决方案 

                        
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