commtestdlg.cpp

是一种VC的串口调试代码的下位机是以十位的数据帧发送数据 上位机是以VB编程序的 十位的数据帧包括1位起首位+8位数据位+一位停止位

	if((EV_RXCHAR&wParam)!=EV_RXCHAR)
		return FALSE;
	//判断是否写入文件,并打开文件,将指针定在文件末尾
	if(judgefile)
	{
		getdatafile.Open(m_savefilename,CFile::modeCreate+CFile::modeNoTruncate+CFile::modeWrite,&e);
		getdatafile.SeekToEnd();
	}
	//将数据读入CString变量中
	CString /*AcceptRead,*/StrTemp;
	BYTE abIn[MAXBLOCK];
	int len;
//	AcceptRead.Empty();//清空CString变量,接收新读入的字符
	len=ReadBlock(abIn,MAXBLOCK);
//	AfxMessageBox("I have getten it!");
	if(!len)
	{
		AfxMessageBox("读字符出错，请检查。");
		return FALSE;
	}
	for(int i=0;i<len;i++)
	{
		BYTE bt=abIn[i];
		if(m_ctrlHexDisplay.GetCheck())
			StrTemp.Format("%02x ",bt);
		else
		    StrTemp.Format("%c",bt);
//		AcceptRead+=StrTemp;
		m_strRXData+=StrTemp;
		if(judgefile)
			{
//				getdatafile.Write(AcceptRead,AcceptRead.GetLength());
				getdatafile.Write(StrTemp,1);
//				getdatafile.Close();
			}
	}
	m_rxlen+=len;
	//将字符显示在指定位置
	if(judgefile)
		getdatafile.Close();
	m_EditRXData.SetWindowText(m_strRXData);

	DispStatus();
//	SetEvent(hPostToWnd);//允许再次发来事件
	return TRUE;
}

int CCommtestDlg::ReadBlock(BYTE *abIn, int MaxLength)
{
	BOOL JudgeRead;
	COMSTAT ComStat;
	DWORD dwErrorFlags,dwLength;
	ClearCommError(m_hCom,&dwErrorFlags,&ComStat);
	if(dwErrorFlags>0)
	{
		AfxMessageBox("读串口错，请检查参数设置。");
		PurgeComm(m_hCom,PURGE_RXABORT|PURGE_RXCLEAR);
		return 0;
	}
	dwLength=((DWORD)MaxLength<ComStat.cbInQue?MaxLength:ComStat.cbInQue);
	memset(abIn,0,MaxLength);
	//如果有字符即读入
	if(dwLength)
	{
		JudgeRead=ReadFile(m_hCom,abIn,dwLength,&dwLength,&m_osRead);//读出字符至abIn处
		if(!JudgeRead)
		{
			//如果重叠操作未完成,等待直到操作完成
			if(GetLastError()==ERROR_IO_PENDING)
			{
//				WaitForSingleObject(m_osRead.hEvent,INFINITE);
				GetOverlappedResult(m_hCom,&m_osRead,&dwLength,TRUE);
				m_osRead.Offset=0;
//				m_osRead.Offset=(m_osRead.Offset+dwLength)%MAXBLOCK;
			}
			else
				dwLength=0;
		}
	}
	return dwLength;
}

int CCommtestDlg::WriteBlock(char *abOut, int MaxLength)
{
	BOOL JudgeWrite;
	COMSTAT ComStat;
	DWORD dwErrorFlags,dwLength,lentest;
	m_osWrite.Offset=0;
	ClearCommError(m_hCom,&dwErrorFlags,&ComStat);
	if(dwErrorFlags>0)
	{
		AfxMessageBox("写串口错！请检查参数设置。");
		PurgeComm(m_hCom,PURGE_TXABORT|PURGE_TXCLEAR);
		return 0;
	}
//	CString l;
	dwLength=MaxLength;

	lentest=0;
	JudgeWrite=WriteFile(m_hCom,abOut,dwLength,&lentest,&m_osWrite);
//	l.Format("%d",dwLength);
//	AfxMessageBox(l);
	if(!JudgeWrite)
	{

		if(GetLastError()==ERROR_IO_PENDING)
		{
//			AfxMessageBox("11111111");
			GetOverlappedResult(m_hCom,&m_osWrite,&lentest,TRUE);
//			l.Format("%ld",lentest);
//			AfxMessageBox(l);
		}
		else
			lentest=0;
	}
	return lentest;
}

void CCommtestDlg::OnButtenMenualsend() 
{
	// TODO: Add your control notification handler code here
	CString filepath;
	char abOut[MAXBLOCK];
	int OutNum,length;
	if(!m_bConnected)
	{
		AfxMessageBox("串口未打开！");
		return;
	}
	m_sendbutten.EnableWindow(FALSE);
	m_transfile.EnableWindow(FALSE);
	m_emptytx.EnableWindow(FALSE);
	m_sFilePath.GetWindowText(filepath);
	memset(abOut,0,MAXBLOCK);
	//判断是否文件写,若是则打开文件并写入缓冲区
	if(!filepath.IsEmpty())
	{
		CFile fsendout;
        CFileException e;
	    fsendout.Open(filepath,CFile::modeRead,&e);
		OutNum=fsendout.Read(abOut,MAXBLOCK);
		while(OutNum)//执行循环后，文件已读完。
		{
			//如果选择了十六进制发送，则转换为字符形式发送出去,否则直接发送字符数组
			if(m_cHexSend.GetCheck())
			{
				//如果读到的字符中最后有个单独的数据，则将读取长度退回一
				if(abOut[OutNum-1]==' '||abOut[OutNum-1]=='\r\n')
					OutNum--;
				if(!OutNum)
				{
					AfxMessageBox("读十六进制文件出错，请检查格式！");
					return;
				}
				//将十六进制字符串转换为CString类,为十六进制转换成字符的函数作准备
				CString StrHexData;
				abOut[OutNum]=NULL;
				StrHexData=CString(abOut);
				char SendOut[MAXBLOCK];
				int len=String2Hex(StrHexData,SendOut);
				length=WriteBlock(SendOut,len);
			}
			else
				length=WriteBlock(abOut,OutNum);
			m_txlen+=OutNum;
			OutNum=fsendout.Read(abOut,MAXBLOCK);//准备下一次循环
			//continue;
		}//while(OutNum)
		fsendout.Close();
//			if(!length)
//			{
//				AfxMessageBox("已写完！");
				m_sendbutten.EnableWindow(TRUE);
				m_transfile.EnableWindow(TRUE);
				m_emptytx.EnableWindow(TRUE);
				DispStatus();
				return;
//			}
//			continue;
//		return;
	}//if(!filepath.IsEmpty())
	//读文本框内容
	CString str;
//	CString strtest;
	GetDlgItem(IDC_EDIT_TXDATA)->GetWindowText(str);
	char SendOut[MAXBLOCK];
	int len=str.GetLength();
	for(int i=0;i<len;i++)
//	{
		abOut[i]=str.GetAt(i);
//		strtest.Format("%c",abOut[i]);
//		AfxMessageBox(strtest);
//	}
	if(m_cHexSend.GetCheck())
	{
		CString StrHexData;
		abOut[len]=NULL;
		StrHexData=CString(abOut);
		len=String2Hex(StrHexData,SendOut);
		length=WriteBlock(SendOut,len);
	}
	else
		length=WriteBlock(abOut,len);
	m_txlen+=length;
/*	if(!length)
		AfxMessageBox("无数据能写入缓冲区！");*/
	m_sendbutten.EnableWindow(TRUE);
	m_transfile.EnableWindow(TRUE);
	m_emptytx.EnableWindow(TRUE);
	DispStatus();
	return;
}

int CCommtestDlg::String2Hex(CString str, char *SendOut)
{
	int hexdata,lowhexdata; 
	int hexdatalen=0;
	int len=str.GetLength();
	//SendOut.SetSize(len/2);
	for(int i=0;i<len;)
	{
		char lstr,hstr=str[i];
		if(hstr==' '||hstr=='\r'||hstr=='\n')
		{
			i++;
			continue;
		}
		i++;
		if (i>=len)
			break;
		lstr=str[i];
		hexdata=ConvertHexData(hstr);
		lowhexdata=ConvertHexData(lstr);
		if((hexdata==16)||(lowhexdata==16))
			break;
		else
			hexdata=hexdata*16+lowhexdata;
		i++;
		SendOut[hexdatalen]=(char)hexdata;
		hexdatalen++;
	}
	//senddata.SetSize(hexdatalen);
	return hexdatalen;
}

char CCommtestDlg::ConvertHexData(char ch)
{
	if((ch>='0')&&(ch<='9'))
		return ch-0x30;
	if((ch>='A')&&(ch<='F'))
		return ch-'A'+10;
	if((ch>='a')&&(ch<='f'))
		return ch-'a'+10;
    else return(-1);
}

void CCommtestDlg::OnButtonTransfile() //选择文件按钮事件函数
{
	// TODO: Add your control notification handler code here
	CFile transfile;
	CFileDialog mFileDlg(TRUE, NULL,NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT , "文本文件(*.txt)|*.txt|All Files (*.*)|*.*| |", AfxGetMainWnd());

    if(mFileDlg.DoModal()==IDOK)
	{
        char outputbuffer[512];
		CFileException e;
		BOOL file;
		int outnum;

        m_strTXData.Empty();//初始化显示文件窗口
        m_edittxdata.SetWindowText(m_strTXData);

	    m_filepath=mFileDlg.GetPathName();//设置显示路径窗口
		m_sFilePath.SetWindowText(m_filepath);

		file=transfile.Open(m_filepath,CFile::modeRead,&e);
		outnum=transfile.Read(outputbuffer,sizeof(outputbuffer)-1);
		while(outnum)
		{
		outputbuffer[outnum]=NULL;
        m_strTXData+=CString(outputbuffer);
		outnum=transfile.Read(outputbuffer,sizeof(outputbuffer)-1);
        }
        
		transfile.Close();
        m_edittxdata.SetWindowText(m_strTXData);
		m_strTXData.Empty();
			        
	}
}

void CCommtestDlg::OnCheckAutosend() 
{
	// TODO: Add your control notification handler code here
	m_bAutoSend=!m_bAutoSend;
	if(m_bAutoSend)
		SetTimer(1,1000,NULL);
	else
		KillTimer(1);
}

void CCommtestDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	OnButtenMenualsend();
	CDialog::OnTimer(nIDEvent);
}

void CCommtestDlg::OnButtonEmptytext() 
{
	// TODO: Add your control notification handler code here
	m_strTXData.Empty();
    m_filepath.Empty();
	GetDlgItem(IDC_STATIC_FILEPAHT)->SetWindowText(m_filepath);
	m_edittxdata.SetWindowText(m_strTXData);	
}

void CCommtestDlg::OnCheckWritetofile() 
{
	// TODO: Add your control notification handler code here
	if(m_judgesend.GetCheck())
	{
        mkdir("c:\\commtest");
	   	m_savefilename="c:\\commtest\\test1.txt";
	}
	else
	{
		m_savefilename.Empty();
	}
	GetDlgItem(IDC_STATIC_FILENAME)->SetWindowText(m_savefilename);
}

void CCommtestDlg::OnButtonFilename() 
{
	// TODO: Add your control notification handler code here
	if(!m_judgesend.GetCheck())
	   AfxMessageBox("你未指定写入到文件项。");
	else
	{
       CFileDialog savefiledlg(FALSE,"txt",NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT , "文本文件(*.txt)|*.txt| |", AfxGetMainWnd());
       if(savefiledlg.DoModal()==IDOK)
	   {
		   m_savefilename=savefiledlg.GetPathName();
		   GetDlgItem(IDC_STATIC_FILENAME)->SetWindowText(m_savefilename);

	   }
	}	
}

void CCommtestDlg::OnButtonSaveedit() 
{
	// TODO: Add your control notification handler code here
    CFile getdatafile;
    CFileException e;
	m_EditRXData.GetWindowText(m_strRXData);
	if(m_savefilename.IsEmpty())
		AfxMessageBox("请选择存放文件处！");
	else
	{
		getdatafile.Open(m_savefilename,CFile::modeCreate+CFile::modeNoTruncate+CFile::modeWrite,&e);
		getdatafile.Write(m_strRXData,m_strRXData.GetLength());
		getdatafile.Close();
	}	
}

void CCommtestDlg::OnButtonEmptyrx() 
{
	// TODO: Add your control notification handler code here
	m_strRXData.Empty();
    m_EditRXData.SetWindowText(m_strRXData);
}

void CCommtestDlg::OnButtonPortstatu() 
{
	// TODO: Add your control notification handler code here
/*	static int i=0;
	int j;
	j=m_ComboSeriou.GetCurSel();
	if(i==j)*/
		m_portstatu_but=!m_portstatu_but;
	if(!m_portstatu_but)
		GetDlgItem(IDC_BUTTON_PORTSTATU)->SetWindowText("串口打开");
	else
		GetDlgItem(IDC_BUTTON_PORTSTATU)->SetWindowText("串口关闭");
    OnSelchangeComboSeriou();

	return;
}

void CCommtestDlg::OnButtonClose() 
{
	// TODO: Add your control notification handler code here
	CloseConnection();
	CDialog::OnOK();	
}

void CCommtestDlg::CloseConnection()
{
	if(!m_bConnected)
		return;
	m_bConnected=FALSE;
//	SetEvent(m_hPostMsgEvent);
//	SetEvent(m_osRead.hEvent);
	SetCommMask(m_hCom,0);
//	SetEvent(m_osRead.hEvent);
//	AfxMessageBox("out");
	WaitForSingleObject(m_pThread->m_hThread,INFINITE);
//	AfxMessageBox("yes");
	m_pThread=NULL;
	CloseHandle(m_hCom);
}

void CCommtestDlg::DispStatus()
{
	CWnd *static_status=GetDlgItem(IDC_STATIC_PORTSTATU);
	CWnd *static_txlen=GetDlgItem(IDC_STATIC_TXLEN);
	CWnd *static_rxlen=GetDlgItem(IDC_STATIC_RXLEN);
    CString status_str,txlen_str,rxlen_str;
	if(m_bConnected)
	    status_str="STATUS:"+m_SeriouStr+" OPENED,"+m_BaudStr+','+m_JiaoyanStr+','+m_DataStr+','+m_StopStr;
    else
        status_str="STATUS:"+m_SeriouStr+" CLOSED,"+m_BaudStr+','+m_JiaoyanStr+','+m_DataStr+','+m_StopStr;
    static_status->SetWindowText(status_str);
	txlen_str.Format("TX:%ld",m_txlen);
	static_txlen->SetWindowText(txlen_str);
	rxlen_str.Format("RX:%ld",m_rxlen);
	static_rxlen->SetWindowText(rxlen_str);
}

void CCommtestDlg::OnSelchangeComboBaud() 
{
	// TODO: Add your control notification handler code here
	int baudindex;
	baudindex=m_ComboBaud.GetCurSel();
	if(baudindex!=CB_ERR)
	{
		SetCommParameter();
		m_ComboBaud.GetLBText(baudindex,m_BaudStr);
		DispStatus();
	}
}

void CCommtestDlg::OnSelchangeComboData() 
{
	// TODO: Add your control notification handler code here
	int dataindex;
	dataindex=m_ComboData.GetCurSel();
	if(dataindex!=CB_ERR)
	{
		SetCommParameter();
		m_ComboData.GetLBText(dataindex,m_DataStr);
		DispStatus();
	}
}

void CCommtestDlg::OnSelchangeComboJiaoyan() 
{
	// TODO: Add your control notification handler code here
	int jiaoyanindex;
	jiaoyanindex=m_ComboJiaoyan.GetCurSel();
	if(jiaoyanindex!=CB_ERR)
	{
		SetCommParameter();
		m_ComboJiaoyan.GetLBText(jiaoyanindex,m_JiaoyanStr);
		DispStatus();
	}
}

void CCommtestDlg::OnSelchangeComboStop() 
{
	// TODO: Add your control notification handler code here
	int stopindex;
	stopindex=m_ComboStop.GetCurSel();
	if(stopindex!=CB_ERR)
	{
		SetCommParameter();
		m_ComboStop.GetLBText(stopindex,m_StopStr);
		DispStatus();
	}
}

void CCommtestDlg::OnSize(UINT nType, int cx, int cy) 
{
	CDialog::OnSize(nType, cx, cy);
	
	// TODO: Add your message handler code here
	
}

void CCommtestDlg::OnButtonReset() 
{
	// TODO: Add your control notification handler code here
	m_rxlen=0;
	m_txlen=0;
	DispStatus();
}