#include?“StdAfx.h“
#include?“SerialComm.h“


CSerialComm::CSerialComm（void）
{
	m_recvData?=?““;
	m_bConnected?=?FALSE;
	m_pThread?=?NULL;
}

CSerialComm::~CSerialComm（void）
{
	if（m_bConnected）?????????????//程序結束時刪除線程、關閉串口操作
		closeConnection（）;

	if（m_hPostMsgEvent）?????????//刪除事件句柄
		CloseHandle（m_hPostMsgEvent）;

	if（m_osRead.hEvent）
		CloseHandle（m_osRead.hEvent）;

	if（m_osWrite.hEvent）
		CloseHandle（m_osWrite.hEvent）;
}

BOOL?CSerialComm::openConnection（CString?commno?UINT8?baud?UINT8?datalen?UINT8?stopbit?UINT8?parity）
{
	if（（baud?>?COMM_BAUD_115200）?||?
	???（datalen?>?COMM_DATA_LEN_8）?||?
	???（stopbit?>?COMM_STOP_BIT_2）?||?
	???（parity?>?COMM_SPACE_PARITY））
	{
		m_bConnected?=?FALSE;
		AfxMessageBox（_T（“串口參數設置錯誤“））;

		return?FALSE;
	}

	m_hPostMsgEvent?=?CreateEvent（NULL?TRUE?TRUE?NULL）;
	if（m_hPostMsgEvent?==?NULL）
		return?FALSE;

	memset（&m_osRead?0?sizeof（OVERLAPPED））;
	memset（&m_osWrite?0?sizeof（OVERLAPPED））;

	m_osRead.hEvent?=?CreateEvent（NULL?TRUE?FALSE?NULL）;??//為重疊讀創建事件對象，手工重置，初始化為無信號
	if（m_osRead.hEvent?==?NULL）
		return?FALSE;

	m_osWrite.hEvent?=?CreateEvent（NULL?TRUE?FALSE?NULL）;?//為重疊寫創建事件對象，手工重置，初始化為無信號
	if（m_osWrite.hEvent?==?NULL）
		return?FALSE;

	m_hComm?=?CreateFile（commno?????????????????????????????//打開串口
		?????????????????GENERIC_READ?|?GENERIC_WRITE???????//允許對設備進行讀寫訪問
						?0??????????????????????????????????//獨占方式
						?NULL???????????????????????????????//
						?OPEN_EXISTING??????????????????????//打開而不是創建
						?FILE_FLAG_OVERLAPPED???????????????//使用異步通信
						?NULL）;
	if（m_hComm?==?（HANDLE）-1）
	{
		m_bConnected?=?FALSE;
		AfxMessageBox（_T（“打開串口失敗“））;
		
		return?FALSE;
	}?else
	{
		SetupComm（m_hComm?MAXBLOCK?MAXBLOCK）;??????????????//輸入緩沖區和輸出緩沖區的大小都是1024
		SetCommMask（m_hComm?EV_RXCHAR?|?EV_TXEMPTY?）;???????//設置事件驅動的類型		
		
		COMMTIMEOUTS?TimeOuts;
		TimeOuts.ReadIntervalTimeout?=?MAXDWORD;?????????????//時間間隔設為最大，設為0會導致ReadFile立即返回并完成操作
		TimeOuts.ReadTotalTimeoutMultiplier?=?0;
		TimeOuts.ReadTotalTimeoutConstant?=?0;

		TimeOuts.WriteTotalTimeoutMultiplier?=?50;???????????//設置寫超時用于GetOverlapperResult函數的等待時間
		TimeOuts.WriteTotalTimeoutConstant?=?2000;
		SetCommTimeouts（m_hComm?&TimeOuts）;?????????????????//設置超時

		//PurgeComm（m_hComm?PURGE_TXABORT?|?PURGE_RXABORT?|?PURGE_TXCLEAR?|?PURGE_RXCLEAR?）;?//清干凈輸入、輸出緩沖區

		if（!configureConnection（commno?baud?datalen?stopbit?parity））
		{
			CloseHandle（m_hComm）;
			return?FALSE;
		}

		return?TRUE;
	}
}

BOOL?CSerialComm::configureConnection（CString?commno?UINT8?baud?UINT8?datalen?UINT8?stopbit?UINT8?parity）
{
	DCB?dcb;
	if（!GetCommState（m_hComm?&dcb））???????????//讀串口原來的參數設置
		return?false;

	switch（baud）???????????????????????????????//波特率
	{
	case?COMM_BAUD_2400:
		dcb.BaudRate?=?2400;
		break;
	case?COMM_BAUD_4800:
		dcb.BaudRate?=?4800;
		break;
	case?COMM_BAUD_9600:
		dcb.BaudRate?=?9600;
		break;
	case?COMM_BAUD

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????3165??2013-12-11?19:13??API_SerialComm\YDVS_SerialComm\ReadMe.txt

?????文件??????67777??2009-08-31?02:31??API_SerialComm\YDVS_SerialComm\res\icon1.ico

?????文件??????67777??2009-08-31?02:31??API_SerialComm\YDVS_SerialComm\res\YDVS_SerialComm.ico

?????文件????????686??2013-12-11?19:13??API_SerialComm\YDVS_SerialComm\res\YDVS_SerialComm.rc2

?????文件???????3306??2013-12-24?12:01??API_SerialComm\YDVS_SerialComm\resource.h

?????文件???????8224??2013-12-20?17:50??API_SerialComm\YDVS_SerialComm\SerialComm.cpp

?????文件???????1671??2013-12-20?17:48??API_SerialComm\YDVS_SerialComm\SerialComm.h

?????文件????????148??2013-12-11?19:13??API_SerialComm\YDVS_SerialComm\stdafx.cpp

?????文件???????1636??2013-12-11?19:20??API_SerialComm\YDVS_SerialComm\stdafx.h

?????文件????????234??2013-12-11?19:13??API_SerialComm\YDVS_SerialComm\targetver.h

?????文件??????41056??2013-12-24?12:01??API_SerialComm\YDVS_SerialComm\YDVS_SerialComm.aps

?????文件???????2110??2013-12-11?19:13??API_SerialComm\YDVS_SerialComm\YDVS_SerialComm.cpp

?????文件????????496??2013-12-11?19:13??API_SerialComm\YDVS_SerialComm\YDVS_SerialComm.h

?????文件???????1481??2013-12-20?13:50??API_SerialComm\YDVS_SerialComm\YDVS_SerialComm.idc

?????文件??????15336??2013-12-24?12:01??API_SerialComm\YDVS_SerialComm\YDVS_SerialComm.rc

?????文件???????6119??2013-12-24?12:01??API_SerialComm\YDVS_SerialComm\YDVS_SerialComm.vcxproj

?????文件???????2316??2013-12-24?12:01??API_SerialComm\YDVS_SerialComm\YDVS_SerialComm.vcxproj.filters

?????文件????????143??2013-12-11?19:13??API_SerialComm\YDVS_SerialComm\YDVS_SerialComm.vcxproj.user

?????文件??????12834??2014-01-19?16:18??API_SerialComm\YDVS_SerialComm\YDVS_SerialCommDlg.cpp

?????文件???????1754??2013-12-24?11:31??API_SerialComm\YDVS_SerialComm\YDVS_SerialCommDlg.h

?????文件???58544128??2014-01-19?16:20??API_SerialComm\YDVS_SerialComm.sdf

?????文件????????912??2013-12-11?19:13??API_SerialComm\YDVS_SerialComm.sln

????..A..H.?????22528??2014-01-19?16:20??API_SerialComm\YDVS_SerialComm.suo

?????目錄??????????0??2014-01-19?16:16??API_SerialComm\ipch\ydvs_serialcomm-65adb533

?????目錄??????????0??2014-01-19?16:21??API_SerialComm\YDVS_SerialComm\Debug

?????目錄??????????0??2014-01-19?16:15??API_SerialComm\YDVS_SerialComm\res

?????目錄??????????0??2014-01-19?16:20??API_SerialComm\Debug

?????目錄??????????0??2014-01-19?16:16??API_SerialComm\ipch

?????目錄??????????0??2014-01-19?16:15??API_SerialComm\YDVS_SerialComm

?????目錄??????????0??2014-01-19?16:20??API_SerialComm

............此處省略3個文件信息