// ComPort.h: interface for the CComPort class.
//	串口操作類
//	芯藝 (c) copyright 2004
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_COMPORT_H__080871CC_1C4D_48AA_AC87_662E9ADBE054__INCLUDED_)
#define AFX_COMPORT_H__080871CC_1C4D_48AA_AC87_662E9ADBE054__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class CComPort  
{
public:
	void ClearBuffer();				//清串行口緩沖區(qū)
	void GetError(CString &str);
	CString m_strLastError;			//最近發(fā)生的錯(cuò)誤描述
	UINT Read(UCHAR *buf,UINT len,DWORD timeout);
	UINT Write(UCHAR *buf,UINT len);
	OVERLAPPED m_ovRead, m_ovWrite; // 用于重疊讀/寫
	void Close();
	HANDLE m_hCom;					//串口打開(kāi)句柄
	BOOL Open(int portnum);
	int m_nCurrentCom;				//當(dāng)前打開(kāi)的串口
	CComPort();
	virtual ~CComPort();

};

#endif // !defined(AFX_COMPORT_H__080871CC_1C4D_48AA_AC87_662E9ADBE054__INCLUDED_)