文本--->多字节

CString strTextContent;
m_RichEdit.GetWindowText(strTextContent);//获取文本内容
DWORD dwNum = WideCharToMultiByte(CP_OEMCP,NULL,strTextContent,-1,NULL,NULL,0,NULL);//文本字符转成多字节，返
回字节数.
char *TextContent = new char[dwNum];//创建文本内容 字符数组
WideCharToMultiByte(CP_OEMCP,NULL,strTextContent,-1,TextContent,dwNum,0,NULL);//字符转字节： 将TextContent保
存到TextContent中.