richedit的使用

Question

我在dialog中用了两个richedit控件，我想从richedit1获得rtf格式的数据，把获得的数据写入richedit2中，怎么做，请出示具体代码。

Answer 1

BOOL   COleRichEditCtrl::CopyFile(   
                                  const   char   *lpSrcFilename,   
                                  const   char   *lpDestFilename,   
                                  int   nBuffersize   )   
{   
    CFile   Out,   In;   
    int   Size,nFilesize,total_size;   
    char   *lpBuffer;       //   Attempt   to   open   the   input   file.   
    if(!In.Open(lpSrcFilename,CFile::modeRead)){   
        AfxMessageBox("Could   not   open   the   input   file."   );   
        return(FALSE);   
    }       //   Attempt   to   create   the   output   file.   
    if(!Out.Open(lpDestFilename,   
        CFile::modeWrite|CFile::modeCreate)   ){   
            AfxMessageBox(   "Could   not   open   the   output   file."   );   
            return FALSE;   
    }       //   Create   the   copy   buffer.   
    lpBuffer=new char [nBuffersize];   
    if(lpBuffer==NULL){   
        AfxMessageBox(   "Could   not   allocate   the   copy   buffer."   );   
        return(   FALSE   );   
    }       CFileStatus   rStatus;   
    In.GetStatus(   lpSrcFilename,   rStatus   );   
    nFilesize   =   In.GetLength();   
    total_size   =   nFilesize;   
    char   *   lpBuffer_total   =   new   char   [nFilesize];//xyh   
    Size=0;   
    while(nFilesize>0){           int nSize=nBuffersize;   
        if(nSize > nFilesize   )   
            nSize=nFilesize;           try{   
            In.Read(   lpBuffer,   nSize   );   
            //memcpy(lpBuffer,lpBuffer,nSize);   
            memcpy(lpBuffer_total+Size,lpBuffer,nSize);   
            Size=Size+nSize;   
            //lpBuffer_total=lpBuffer_total   +   nSize;   
        }   
        catch(CFileException   *e   ){   
            char *lpMsgBuf;   
            if(FormatMessage(   
                FORMAT_MESSAGE_ALLOCATE_BUFFER   |   
                FORMAT_MESSAGE_FROM_SYSTEM,   
                NULL,   e->m_lOsError,   
                MAKELANGID(LANG_NEUTRAL,   
                SUBLANG_DEFAULT),   
                (LPSTR)&lpMsgBuf,0,NULL) > 0 ){   
                    AfxMessageBox(lpMsgBuf);   
                    LocalFree(lpMsgBuf);   
            }               //   Free   the   exception   and   
            //   return.   
            e->Delete();   
            return FALSE;   
        }           e->Delete();   
        return  FALSE;   
    }   //while    nFilesize   -=   nSize;       try{   
        Out.Write(   lpBuffer_total,   total_size   );   
    }       catch(   CFileException   *e   ){           char   *lpMsgBuf;   
        if(   FormatMessage(   
            FORMAT_MESSAGE_ALLOCATE_BUFFER   |   
            FORMAT_MESSAGE_FROM_SYSTEM,   
            NULL,   e->m_lOsError,   
            MAKELANGID(   LANG_NEUTRAL,   
            SUBLANG_DEFAULT   ),   
            (LPSTR)   &lpMsgBuf,   0,   NULL   )   >   0   ){   
                AfxMessageBox(   lpMsgBuf   );   
                LocalFree(   lpMsgBuf   );   
        }           e->Delete();   
        return(   FALSE   );   
    }   
    //Out.Write(   lpBuffer_total,   total_size   );Õâ¸öÒ²¿ÉÒÔ   
    EDITSTREAM   es;   
    es.pfnCallback   =   readFunction;   
    es.dwError   =   0;   
    es.dwCookie   =   (DWORD)lpBuffer_total;   
    StreamIn(   SF_RTF,   es   );   
    //   Close   the   output   file   so   that   the   
    //   SetStatus()   function   won't   fail.   
    Out.Close();   
    CFile::SetStatus(   lpDestFilename,   rStatus   );       //   Delete   the   buffer.   
    delete   []lpBuffer;   
    delete   []lpBuffer_total;       return   TRUE;   }   //这是关键的回调函数   
DWORD  CALLBACK  COleRichEditCtrl::readFunction(DWORD   dwCookie,   
                                                  LPBYTE   lpBuf, //   the   buffer   to   fill   
                                                  LONG   nCount, //   number   of   bytes   to   read   
                                                  LONG*   nRead) //   number   of   bytes   actually   read   
{       char *pstr=(char *)dwCookie;    
    if((LONG)strlen(pstr)<nCount)   
    {   
        *nRead   =   (LONG)strlen(pstr);   
        memcpy(lpBuf,pstr,   *nRead);   
        //pstr->Empty();   
    }       else   
    {   
        LONG   nSize   =   0;   
        LONG   i   =   0;   
        LONG   j   =   0;   
        LONG   readBuff=(LONG)strlen(pstr);   
        //*nRead   =   nCount;   
        i=*nRead;   
        j=nCount;   
        memcpy(lpBuf,pstr+nSize,nCount);
        nSize   =   nSize   +   nCount;   
        i=*nRead;   
        j=nCount;   
        //readBuff=readBuff-nCount;   
        //*pstr=pstr->Right(pstr->GetLength()-nCount);   
    }       return   0;   
}

Answer 2

可以参考http://hi.baidu.com/smlib/blog/item/1bd7193ea9bfcaf9828b13f9.html