comportdlg.cpp

本实例实现在VC下如何编写串口(com port)实例(与串口通信), 对初学者弄懂串口的实现过程是很好的一个实例.以及现实将串口读到的数据记录到一个testlog目录中,以做备份

	switch(m_nStopBits)
	{
	case ONESTOPBIT:
		comSetting.m_strStopBits = "1";  //ONESTOPBIT
		break;
	case ONE5STOPBITS:
		comSetting.m_strStopBits = "1.5"; //ONE5STOPBITS
		break;
	case TWOSTOPBITS:
		comSetting.m_strStopBits = "2";  //TWOSTOPBITS
		break;
	default:;
	}	
	comSetting.m_nFlowCtrl = m_nFlowCtrl;  
	
	if(comSetting.DoModal()==IDOK)
	{
		m_strPort = comSetting.m_strPort;
		m_nBaud = atoi(comSetting.m_strBaudRate);
		m_nDataBits = atoi(comSetting.m_strDataBits);

		if(comSetting.m_nParity == "NONE")
			m_nParity = NOPARITY;
		else if(comSetting.m_nParity == "EVEN")
			m_nParity = EVENPARITY;
		else
			m_nParity = ODDPARITY;

		str.Format("A stopbits = %s",comSetting.m_strStopBits);	

 		if(comSetting.m_strStopBits == "1")
		{
 			m_nStopBits = ONESTOPBIT;
			str.Format("1 m_nStopBits = %d; ONESTOPBIT= %d",m_nStopBits, ONESTOPBIT);
			//MessageBox(str);
		}
 		else if(comSetting.m_strStopBits == "1.5")
		{
 			m_nStopBits = ONE5STOPBITS;
			MessageBox("1.5");
		}
		else
		{
 			m_nStopBits = TWOSTOPBITS;
			MessageBox("2");
		}
		str.Format("B stopbits = %s;  m_nStopBits = %d",comSetting.m_strStopBits, m_nStopBits);	
		//MessageBox(str);

		m_nFlowCtrl = comSetting.m_nFlowCtrl;

		str.Format("1 m_strPort=%s, m_nBaud = %d, m_nDataBits= %d,\
			m_nParity = %d, m_nStopBits = %d, m_nFlowCtrl = %d",
			m_strPort, m_nBaud, m_nDataBits, m_nParity, m_nStopBits, m_nFlowCtrl);
		MessageBox(str);	
	}  	
}

void timefunction()
{
	//得到的是格林威治时间
	CString str;
	WORD currentyear;
	WORD currentmonth;
	WORD currentday;

	WORD currenthour;
	WORD currentminute;
	WORD currentsecond;	
	WORD currentmilsecond;

	WORD currentdayofweek;
	
	SYSTEMTIME currenttime;
	
	GetSystemTime(&currenttime);
	currentyear = currenttime.wYear;
	currentmonth = currenttime.wMonth;
	currentday = currenttime.wDay;

	currenthour = currenttime.wHour;
	currentminute = currenttime.wMinute;
	currentsecond = currenttime.wSecond;
	currentmilsecond = currenttime.wMilliseconds;

	currentdayofweek = currenttime.wDayOfWeek;

// 	str.Format("Today is %d-%d-%d",currentyear, currentmonth, currentday);
	
	str.Format("Today is: %d-%d-%d\nNow is:   %d :%d :%d ::%d\nWeek:     %d", currentyear,currentmonth,
		currentday, currenthour, currentminute, currentsecond, currentmilsecond, currentdayofweek);
	AfxMessageBox(str);
	
}

void filepathfunction()
{
		CString str1;
		CFile cfile(_T("D:\\MyProject\\project\\ComPort\\1.log"), CFile::modeRead);
	  	str1.Format("GetFilePath= %s; Name= %s; length=%d; Title= %s; Position=%s; \
		 		",cfile.GetFilePath(),cfile.GetFileName(),\
				cfile.GetLength(),cfile.GetFileTitle(), cfile.GetPosition());
		AfxMessageBox(str1);
		
}

void getsystemvaliable()
{
	//获得系统变量.
	#define BUFSIZE 1024
	CString str1;
	LPTSTR lpszSystemInfo;
	DWORD cchBuff = BUFSIZE;            //DWORD = unsigned long
	//	char tchBuffer[BUFSIZE];
	TCHAR tchBuffer[BUFSIZE];   //             TCHAR = char
	lpszSystemInfo = tchBuffer;
	//Disaply computer name.
	//GetComputerName(LPTSTR, LPDWORD)  LPTSTR = char*
	if(GetComputerName(lpszSystemInfo, &cchBuff))
	{
		str1.Format("Computer name: %s",lpszSystemInfo);
	}
	cchBuff = BUFSIZE;
	//Get UserName 
	if(GetUserName(lpszSystemInfo, &cchBuff))
		str1.Format("UserName= %s", lpszSystemInfo);
	//Get System directory d:\windows\system32
	if(GetSystemDirectory(lpszSystemInfo, MAX_PATH+1))
		str1.Format("System directory: %s", lpszSystemInfo);
	//Get windows directory
	if(GetWindowsDirectory(lpszSystemInfo, MAX_PATH + 1))
		str1.Format("windows directory: %s",lpszSystemInfo);
	//Expand the PATH environment variable
	DWORD dwResult;
	dwResult = ExpandEnvironmentStrings("PATH=%PATH%",lpszSystemInfo, BUFSIZE);
	if(dwResult <= BUFSIZE)
		str1.Format("Environment variable= %s", lpszSystemInfo);
	//Expand the OS environment variable
	dwResult = ExpandEnvironmentStrings(
		"OS=%OS%",
		lpszSystemInfo,
		BUFSIZE);
	if(dwResult <= BUFSIZE)
		str1.Format("os environment : %s",lpszSystemInfo);
	dwResult = ExpandEnvironmentStrings(
		"TEMP= %TEMP%",
		lpszSystemInfo, BUFSIZE);
	if(dwResult<= BUFSIZE)
		str1.Format("TEMP path: %s",lpszSystemInfo);
}


void getcurrdirfunction()
{
	CString str1;
	DWORD dir;
	DWORD buflen;
	TCHAR tchBuffer1[BUFSIZE];   //             TCHAR = char
	buflen = BUFSIZE;
	
	LPTSTR lpbuf;
	lpbuf = tchBuffer1;
	dir =  GetCurrentDirectory(buflen,lpbuf);
	str1.Format("Current directory: %s",lpbuf);
	AfxMessageBox(str1);
}
void definetype()
{
 	typedef long aa, bb;
	aa vaa = 300;
 	bb vbb = 600;
}

void cfilefunction()
{
	CString filename;
	CString mode;
	CString writecstring;

	filename = "testlog\\1.log";
	mode = "a+";
	writecstring = "ABCDEFG 1234567";

	FILE *lpfile = fopen(filename,mode);
	fwrite(writecstring,1,strlen(writecstring), lpfile);
	fclose(lpfile);
}

void createdir()
{
	if (CreateDirectory("testlog\\TXT\\",NULL))
		AfxMessageBox("Create directory oK!");
	else
		AfxMessageBox("Create failed!");
}

void ctimefunction()
{
	//获得当前系统时间
	DWORD year;
	DWORD month;
	DWORD day;
	DWORD hour;
	DWORD minute;
	DWORD second;


	CString str;
	CTime currtime = CTime::GetCurrentTime();
	year = currtime.GetYear();
	month = currtime.GetMonth();
	day = currtime.GetDay();
	hour = currtime.GetHour();
	minute = currtime.GetMinute();
	second = currtime.GetSecond();

	str.Format("Now is %d-%d-%d %d:%d:%d",year,month,day,hour,minute,second);
	AfxMessageBox(str);
	//自己设置一个时间进行获得
	CTime t( 1999, 3, 19, 22, 15, 0 ); // 10:15PM March 19, 1999
	struct tm* osTime;  // A pointer to a structure containing time elements.
	osTime = t.GetLocalTm( NULL );
	hour = osTime->tm_hour;
	str.Format("hour: %d",hour);

	AfxMessageBox(str);

}


void dwordtostr()
{
	DWORD dwaa = 200;

	CString strbb;
	CString strhex;
	strhex.Format("%d",dwaa);
	AfxMessageBox(strhex);
}


void createdir1()
{
	CString currdir;
	DWORD dir;
	DWORD buflen;
	TCHAR tchBuffer1[BUFSIZE];   //             TCHAR = char
	LPTSTR lpbuf;
	lpbuf = tchBuffer1;
	buflen = BUFSIZE;
	dir =  GetCurrentDirectory(buflen,lpbuf);
	currdir.Format("%s",lpbuf);
	
	//获得当前的时间用于创建目录
	DWORD year,month,day;	
	CTime currtime = CTime::GetCurrentTime();
	year = currtime.GetYear();
	month = currtime.GetMonth();
	day = currtime.GetDay();
	
	//创建目录
	CString currpath;
	currpath.Format("%s\\testlog\\%d-%d-%d\\",currdir,year,month,day);
	AfxMessageBox(currpath);
	CreateDirectory(currpath,NULL);
}

void stringanalysis()
{
	CString str1;
	CString str2;
	str1 = "abcdefghijklmnopqrstuvwxyz";
	if(str1.Find("pqrst",0)!=-1 )
		AfxMessageBox("Find the string");
// 	re = str1.Find("pqrst",0);
// 	str2.Format("re = %d",re);
	return;
}
void stringempty()
{
	CString aa;
	aa = "ksdaf";
	aa ="";
	if(aa.IsEmpty())
		AfxMessageBox("empty");
}
void CComPortDlg::OnbtnShowLog() 
{
// 	timefunction();  //学习时间的获得  

// 	filepathfunction();   //分离文件路径及文件名

//	getcurrdirfunction();  //获得当前目录

//	definetype();    //类型定义别名

//	cfilefunction();  //打开一个文件

//	createdir();   //创建目录

//	ctimefunction();  //获得本地时间

//	dwordtostr();

//	createdir1();    //创建时间创建目录

//	stringanalysis();

//	stringempty();
	
//	m_bcalltestfindstring = TRUE;   //call testfindstring function.

//	m_bcallexpectstring = TRUE;    //Call expectstring function

	m_testthread->ResumeThread();
	starttest = TRUE;



//	MessageBox(str1);
	//log.ShowLength();	
}

BOOL CComPortDlg::recordlog(char buf[], int length)

{
	int tempstrlen;
	CString tempstr;

	for(int i=0; i<length; i++)
	{
		switch(buf[i])
		{
		case '\n':
			tempstr +="\n";
			break;
		case '\b':
			break;
		case '\a':
			break;
		default:
			//MessageBox(tempstr);
			tempstr += buf[i];			
		}
	}	

	tempstrlen = strlen(tempstr);
	CString tempstr1;
	log.Record(tempstr);	

	return TRUE;
}

BOOL CComPortDlg::recordlog(CString str, BOOL lastrecord)
{

	CString strtemp1;

	m_strrecordlog_temp += str;

	if(strlen(m_strrecordlog_temp)>2048)
	{
		log.Record(m_strrecordlog_temp);
		m_strrecordlog_temp = "";
	}
	/*else
	{		
		strtemp1.Format("m_strrecordlog_temp length= %d",strlen(m_strrecordlog_temp));
		//MessageBox(strtemp1);
	}*/
	if (lastrecord == 1)
	{
		log.Record(m_strrecordlog_temp);
		m_strrecordlog_temp = "";
	}
	
	return TRUE;
}

void CComPortDlg::Onbtnlastlog() 
{
	CString str = "";
	recordlog(str, 1);	
}

void CComPortDlg::Onbtnsendcommand() 
{
	char * commd;
	commd = "dir\n";
	m_bisonchar = FALSE;	
	SendCom(commd,strlen(commd));
}

BOOL CComPortDlg::getcomportbuffer(CString str)
{	
	m_strbuffer += str;
	return TRUE;
}

void CComPortDlg::Onbtngetbuffer() 
{
	MessageBox(m_strbuffer);	
}



UINT testread(LPVOID pParam)
{
	CComPortDlg* pDlgtest = (CComPortDlg*)pParam;
	
	while(TRUE)
	{
		pDlgtest->m_strtestbuffer= pDlgtest->m_strbuffer;
		Sleep(500);
		//Run test function.
		if (pDlgtest->m_bcalltestfindstring)  
		{
			pDlgtest->testfindstring("dir\n","2849792",4);
		}		
		
		//Run exception function.
		if(pDlgtest->m_bcallexpectstring)
		{
			pDlgtest->expectstring("2849792",4);
		}				
	}
	return 1;
}

BOOL CComPortDlg::testreadthread()
{
	m_testreadthread = AfxBeginThread(
		testread,
		this,
		THREAD_PRIORITY_NORMAL,
		0,
		CREATE_SUSPENDED,
		NULL);
	if(m_testreadthread == NULL)
	{
		return FALSE;
	}
	else
	{
		m_testreadthread->ResumeThread();
	}
	return TRUE;
}




BOOL CComPortDlg::testfindstring(char* input, CString output, int itime)
{
	if(!m_bsendonetime)
	{
		m_strtestbuffer = "";
		m_strbuffer = "";
		m_bisonchar = FALSE;	

		starttime = CTime::GetCurrentTime();
		endtime = starttime;
		waittime = itime;
		m_testfindstring = output;
		SendCom(input,strlen(input));
		m_bsendonetime = TRUE;
	}	

	if((endtime > (starttime+waittime)))
	{
		MessageBox("No find string!");
		m_bcalltestfindstring = FALSE;
		m_bsendonetime = FALSE;		
	}
	else
	{					
		if(m_strtestbuffer.Find(m_testfindstring,0) != -1)
		{
			MessageBox("find string!");
			m_bcalltestfindstring = FALSE;
			m_bsendonetime = FALSE;			
		}
	}
	endtime = CTime::GetCurrentTime();


	return TRUE;
}

BOOL CComPortDlg::expectstring(CString expectstring, int itime)
{
	if(!m_bexpectonetime)
	{
		m_bexpectonetime = TRUE;
		
		starttime = CTime::GetCurrentTime();
		endtime = starttime;
	}

	if(endtime>(starttime+itime))
	{		
		m_bcallexpectstring = FALSE;
		m_bexpectonetime = FALSE;
		MessageBox("No expect string fail!");
	}
	else
	{
		if(m_strtestbuffer.Find(expectstring,0) != -1)
		{			
			m_bcallexpectstring = FALSE;
			m_bexpectonetime = FALSE;
			MessageBox("Expect string Pass");
		}
	}
	endtime = CTime::GetCurrentTime();

	
	return TRUE;
}



UINT testfun(LPVOID pParam)
{

	CComPortDlg* pDlgtest = (CComPortDlg*)pParam;
	LPDWORD exitcode ;
	DWORD dcode = 0;
//	exitcode = &dcode;
	
	if(pDlgtest->starttest)
	{
		pDlgtest->m_strtestbuffer;
// 		if(pDlgtest->testfindstr("dir\n","niagarahub",4))
// 		{
// 			if(pDlgtest->testfindstr("config t\n","niagarahub(config)#",4))
// 				pDlgtest->testfindstr("int f0/1\n","niagarahub(config-if)#",4);
// 		}

		pDlgtest->testfindstr("dir\n","niagarahub",4);
		pDlgtest->testfindstr("config t\n","niagarahub(config)#",4);
		pDlgtest->testfindstr("int f0/1\n","niagarahub(config-if)#",4);
		pDlgtest->testfindstr("exit\n","niagarahub(config)#",4);
		pDlgtest->testfindstr("exit\n","niagarahub",4);

	}

	pDlgtest->thiscomclose();
//	GetExitCodeThread(pDlgtest->pcomopen, exitcode);

	
//	CString strcode;
//	DWORD newcode;

//	strcode.Format("exitcode = %d", newcode);
//	AfxMessageBox(strcode);
	
	return 1;
}




BOOL CComPortDlg::testthread()
{
	m_testthread = AfxBeginThread(
		testfun,
		this,
		THREAD_PRIORITY_NORMAL,
		0,
		CREATE_SUSPENDED,
		NULL);
	if(m_testthread == NULL)
	{
		return FALSE;
	}
/*	else
	{
		m_testthread->ResumeThread();
	}
*/
	return TRUE;

}







BOOL CComPortDlg::testfindstr(char* input, CString output, int itime)
{
	BOOL findstatus;
	m_bisonchar = FALSE;	
	
	starttime = CTime::GetCurrentTime();
	endtime = starttime;
	waittime = itime;
	m_testfindstring = output;
	SendCom(input,strlen(input));

	while(TRUE)
	{
		Sleep(500);
		if((endtime > (starttime+waittime)))
		{
//			MessageBox("No find string!  testfindstr");
			findstatus = FALSE;
			break;	
		}
		else
		{					
			if(m_strtestbuffer.Find(m_testfindstring,0) != -1)
			{
//				MessageBox("find string!  testfindstr");
				findstatus = TRUE;
				break;
			}
		}
		endtime = CTime::GetCurrentTime();
	}
	if(findstatus)
		return TRUE;
	else
		return FALSE;
}

void CComPortDlg::thiscomclose()
{
	if(!m_bConnected)
	{
		MessageBox("Com Port was closed!");
		return ;
	}
	m_bConnected = FALSE;
	CComPortDlg::ComClose();	

}