#include?“stdafx.h“
#include?“SerialPort.h“

#include?

?
//
//?Constructor
//
CSerialPort::CSerialPort（）
{
	m_hComm?=?NULL;

	//?initialize?overlapped?structure?members?to?zero
	m_ov.Offset?=?0;
	m_ov.OffsetHigh?=?0;

	//?create?events
	m_ov.hEvent?=?NULL;
	m_hWriteEvent?=?NULL;
	m_hShutdownEvent?=?NULL;

	m_szWriteBuffer?=?NULL;
	m_nWriteSize=1;

	m_bThreadAlive?=?FALSE;
}

//
//?Delete?dynamic?memory
//
CSerialPort::~CSerialPort（）
{
	do
	{
		SetEvent（m_hShutdownEvent）;
	}?while?（m_bThreadAlive）;


	TRACE（“Thread?ended\n“）;

	delete?[]?m_szWriteBuffer;
}

//
//?Initialize?the?port.?This?can?be?port?1?to?4.
//
BOOL?CSerialPort::InitPort（CWnd*?pPortOwner	//?the?owner?（CWnd）?of?the?port?（receives?message）
						???UINT??portnr		//?portnumber?（1..4）
						???UINT??baud			//?baudrate
						???char??parity		//?parity?
						???UINT??databits		//?databits?
						???UINT??stopbits		//?stopbits?
						???DWORD?dwCommEvents	//?EV_RXCHAR?EV_CTS?etc
						???UINT??writebuffersize）	//?size?to?the?writebuffer
{
	assert（portnr?>?0?&&?portnr?	assert（pPortOwner?!=?NULL）;

	//?if?the?thread?is?alive:?Kill
	if?（m_bThreadAlive）
	{
		do
		{
			SetEvent（m_hShutdownEvent）;
		}?while?（m_bThreadAlive）;
		TRACE（“Thread?ended\n“）;
	}

	//?create?events
	if?（m_ov.hEvent?!=?NULL）
		ResetEvent（m_ov.hEvent）;
	m_ov.hEvent?=?CreateEvent（NULL?TRUE?FALSE?NULL）;

	if?（m_hWriteEvent?!=?NULL）
		ResetEvent（m_hWriteEvent）;
	m_hWriteEvent?=?CreateEvent（NULL?TRUE?FALSE?NULL）;
	
	if?（m_hShutdownEvent?!=?NULL）
		ResetEvent（m_hShutdownEvent）;
	m_hShutdownEvent?=?CreateEvent（NULL?TRUE?FALSE?NULL）;

	//?initialize?the?event?objects
	m_hEventArray[0]?=?m_hShutdownEvent;	//?highest?priority
	m_hEventArray[1]?=?m_ov.hEvent;
	m_hEventArray[2]?=?m_hWriteEvent;

	//?initialize?critical?section
	InitializeCriticalSection（&m_csCommunicationSync）;
	
	//?set?buffersize?for?writing?and?save?the?owner
	m_pOwner?=?pPortOwner;

	if?（m_szWriteBuffer?!=?NULL）
		delete?[]?m_szWriteBuffer;
	m_szWriteBuffer?=?new?char[writebuffersize];

	m_nPortNr?=?portnr;

	m_nWriteBufferSize?=?writebuffersize;
	m_dwCommEvents?=?dwCommEvents;

	BOOL?bResult?=?FALSE;
	char?*szPort?=?new?char[50];
	char?*szBaud?=?new?char[50];

	//?now?it?critical!
	EnterCriticalSection（&m_csCommunicationSync）;

	//?if?the?port?is?already?opened:?close?it
	if?（m_hComm?!=?NULL）
	{
		CloseHandle（m_hComm）;
		m_hComm?=?NULL;
	}

	//?prepare?port?strings
	sprintf（szPort?“COM%d“?portnr）;
	sprintf（szBaud?“baud=%d?parity=%c?data=%d?stop=%d“?baud?parity?databits?stopbits）;

	//?get?a?handle?to?the?port
	m_hComm?=?CreateFile（szPort						//?communication?port?string?（COMX）
					?????GENERIC_READ?|?GENERIC_WRITE	//?read/write?types
					?????0								//?comm?devices?must?be?opened?with?exclusive?access
					?????NULL							//?no?security?attributes
					?????OPEN_EXISTING					//?comm?dev

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

?????文件??????12326??2014-10-30?08:18??SerialPortTest龔建偉\Debug\RCa01760

?????文件??????12326??2014-10-30?08:17??SerialPortTest龔建偉\Debug\RCa02148

?????文件??????12318??2014-10-30?08:18??SerialPortTest龔建偉\Debug\RCa02812

?????文件??????12326??2014-10-30?08:16??SerialPortTest龔建偉\Debug\RCa02820

?????文件??????12326??2014-10-30?08:22??SerialPortTest龔建偉\Debug\RCa03912

?????文件??????12326??2014-10-30?08:28??SerialPortTest龔建偉\Debug\RCa03976

?????文件??????27501??2014-10-30?08:30??SerialPortTest龔建偉\Debug\SerialPort.obj

?????文件?????118925??2014-10-30?08:48??SerialPortTest龔建偉\Debug\SerialPortTest.exe

?????文件?????262196??2014-10-30?08:48??SerialPortTest龔建偉\Debug\SerialPortTest.ilk

?????文件??????15416??2014-10-30?08:30??SerialPortTest龔建偉\Debug\SerialPortTest.obj

?????文件????5628828??2014-10-30?08:30??SerialPortTest龔建偉\Debug\SerialPortTest.pch

?????文件?????418816??2014-10-30?08:48??SerialPortTest龔建偉\Debug\SerialPortTest.pdb

?????文件???????2984??2014-10-30?08:30??SerialPortTest龔建偉\Debug\SerialPortTest.res

?????文件??????30774??2014-10-30?08:48??SerialPortTest龔建偉\Debug\SerialPortTestDlg.obj

?????文件?????106124??2014-10-30?08:30??SerialPortTest龔建偉\Debug\StdAfx.obj

?????文件?????197632??2014-10-30?08:48??SerialPortTest龔建偉\Debug\vc60.idb

?????文件?????364544??2014-10-30?08:48??SerialPortTest龔建偉\Debug\vc60.pdb

?????文件???????3723??2004-01-30?22:43??SerialPortTest龔建偉\ReadMe.txt

?????文件???????1078??2010-04-13?13:55??SerialPortTest龔建偉\res\SerialPortTest.ico

?????文件????????406??2010-04-13?13:55??SerialPortTest龔建偉\res\SerialPortTest.rc2

?????文件????????922??2004-02-01?12:25??SerialPortTest龔建偉\RESOURCE.H

?????文件??????18440??2004-02-13?23:13??SerialPortTest龔建偉\SerialPort.cpp

?????文件???????2746??2004-01-28?01:27??SerialPortTest龔建偉\SerialPort.h

?????文件??????22024??2014-10-30?08:30??SerialPortTest龔建偉\SerialPortTest.aps

?????文件???????1549??2014-10-30?08:50??SerialPortTest龔建偉\SerialPortTest.clw

?????文件???????2175??2004-01-30?22:43??SerialPortTest龔建偉\SerialPortTest.cpp

?????文件???????4435??2004-01-30?23:15??SerialPortTest龔建偉\SerialPortTest.dsp

?????文件????????553??2004-01-30?23:18??SerialPortTest龔建偉\SerialPortTest.dsw

?????文件???????1412??2004-01-30?22:43??SerialPortTest龔建偉\SerialPortTest.h

?????文件?????132096??2014-10-30?08:50??SerialPortTest龔建偉\SerialPortTest.ncb

............此處省略13個文件信息