#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?de

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

?????文件??????26750??2011-02-26?15:53??Test_Com2\Debug\SerialPort.obj

?????文件?????105401??2011-02-22?15:44??Test_Com2\Debug\StdAfx.obj

?????文件?????122929??2011-05-08?11:45??Test_Com2\Debug\Test_Com2.exe

?????文件?????271136??2011-05-08?11:45??Test_Com2\Debug\Test_Com2.ilk

?????文件??????16544??2011-05-08?11:10??Test_Com2\Debug\Test_Com2.obj

?????文件????5503668??2011-02-22?15:44??Test_Com2\Debug\Test_Com2.pch

?????文件?????451584??2011-05-08?11:45??Test_Com2\Debug\Test_Com2.pdb

?????文件???????3796??2011-05-05?13:33??Test_Com2\Debug\Test_Com2.res

?????文件??????51617??2011-05-08?11:45??Test_Com2\Debug\Test_Com2Dlg.obj

?????文件?????222208??2011-05-08?11:47??Test_Com2\Debug\vc60.idb

?????文件?????380928??2011-05-08?11:45??Test_Com2\Debug\vc60.pdb

?????文件???????3597??2005-05-25?09:16??Test_Com2\ReadMe.txt

?????文件???????1078??2011-02-22?15:41??Test_Com2\res\Test_Com2.ico

?????文件????????401??2011-02-22?15:41??Test_Com2\res\Test_Com2.rc2

?????文件???????1193??2011-02-24?22:25??Test_Com2\resource.h

?????文件??????18441??2011-02-26?15:53??Test_Com2\SerialPort.cpp

?????文件???????2747??2011-02-26?15:51??Test_Com2\SerialPort.h

?????文件????????211??2011-02-22?15:41??Test_Com2\StdAfx.cpp

?????文件???????1054??2011-02-22?15:41??Test_Com2\StdAfx.h

?????文件??????37708??2011-05-05?13:33??Test_Com2\Test_Com2.aps

?????文件???????1905??2011-05-08?11:48??Test_Com2\Test_Com2.clw

?????文件???????2105??2011-02-22?15:41??Test_Com2\Test_Com2.cpp

?????文件???????4342??2011-02-23?17:17??Test_Com2\Test_Com2.dsp

?????文件????????541??2011-02-22?15:41??Test_Com2\Test_Com2.dsw

?????文件???????1357??2011-02-22?15:41??Test_Com2\Test_Com2.h

?????文件??????74752??2011-05-08?11:50??Test_Com2\Test_Com2.ncb

?????文件??????49664??2011-05-08?11:50??Test_Com2\Test_Com2.opt

?????文件????????252??2011-05-08?11:47??Test_Com2\Test_Com2.plg

?????文件???????9386??2011-05-05?13:33??Test_Com2\Test_Com2.rc

?????文件??????10922??2011-05-08?11:45??Test_Com2\Test_Com2Dlg.cpp

............此處省略7個文件信息