CEdit换行和GetLine乱码

• CEdit换行：
  继承自CEdit的类中处理PreTranslateMessage可换行，类似于：

BOOL CNewEdit::PreTranslateMessage(MSG* pMsg) {    if (pMsg->message == WM_KEYDOWN)    {        if (pMsg->wParam == VK_RETURN)        {            if (GetFocus() == this)//焦点在当前控件时发送一个'\n'消息            {                SendMessage(WM_CHAR, '\n', 1);                return TRUE;            }        }    }    return CEdit::PreTranslateMessage(pMsg);}

创建时需要指定ES_MULTILINE和ES_WANTRETURN 风格：

m_newEdit.Create(WS_CHILD|WS_VISIBLE|ES_MULTILINE|ES_LEFT|WS_BORDER|ES_WANTRETURN ,m_rcRect,pWnd,1);

• CEdit::GetLine乱码：
  CEdit::GetLine获取某一行的数据时有时候得到的是乱码，

    TEXTMETRIC tm;    dcMem.GetTextMetrics(&tm);//获取字体信息    int nTxtHieht = (tm.tmHeight /*+ tm.tmExternalLeading*/);    int i, nLineCount = pCurText->get_m_newEdit().GetLineCount();//行数量    CString strText, strLine;    TCHAR lineTextBuf[2048] = {0};    int nCy = rcPos.top;    for (i = 0; i < nLineCount; i++, nCy += nTxtHieht)//多行    {        int lineIndex = pCurText->get_m_newEdit().LineIndex(i);//Index错误时返回-1        if (lineIndex == -1)//index error            continue;        int lineLen = pCurText->get_m_newEdit().LineLength(lineIndex);//Index错误时返回0        if (lineLen == 0)//zero length            continue;        memset(lineTextBuf, 0, 2048);        int lineBufLen = pCurText->get_m_newEdit().GetLine(i, lineTextBuf, 2048);//返回值是真正复制的长度，但是不会复制结尾符        if (lineBufLen == 0)//buflen            continue;        lineTextBuf[lineBufLen] = 0;//GetLine函数不会加上结尾符，需要自己加上 The copied line does not contain a null-termination character.//https://msdn.microsoft.com/en-us/library/7775836w(v=vs.100).aspx        strText = lineTextBuf;        dcMem.TextOut(rcPos.left, nCy, strText);    }