serialportapidlg.cpp

自己刚编的一个串口测试程序,可以下下来看一下,

// SerialPortAPIDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SerialPortAPI.h"
#include "SerialPortAPIDlg.h"
#include "SetPortDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define COM_RECVDATA  WM_USER+1000//自定义消息
HANDLE hCom; //全局变量，串口句柄
HANDLE hCommThread; //全局变量，串口线程
extern DWORD WINAPI SerialPort1ThreadProcess(HWND hWnd);
int InputLen();
//自定义变量
const int MAX_MESSAGE=101;
int GetSendLen=0,RecvLen=0;
CString RecvStr;
DCB wdcb;
int ButtonCheck=0;



/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialPortAPIDlg dialog

CSerialPortAPIDlg::CSerialPortAPIDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSerialPortAPIDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSerialPortAPIDlg)
	m_recv = _T("");
	m_send = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSerialPortAPIDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSerialPortAPIDlg)
	DDX_Text(pDX, IDC_RECV_EDIT, m_recv);
	DDX_Text(pDX, IDC_SEND_EDIT, m_send);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSerialPortAPIDlg, CDialog)
	//{{AFX_MSG_MAP(CSerialPortAPIDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_OPENPORT, OnOpenport)
	ON_BN_CLICKED(IDC_CLOSEPORT, OnCloseport)
	ON_BN_CLICKED(IDC_SEND, OnSend)
	ON_BN_CLICKED(IDC_CLEAR, OnClear)
	ON_BN_CLICKED(IDC_SETPORT, OnSetport)
	ON_MESSAGE(COM_RECVDATA, OnRecvData)
	ON_BN_CLICKED(IDC_HDX_SHOW, OnHdxShow)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialPortAPIDlg message handlers

BOOL CSerialPortAPIDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	DWORD threadID;
	hCommThread = ::CreateThread((LPSECURITY_ATTRIBUTES)NULL, 0,
		(LPTHREAD_START_ROUTINE)SerialPort1ThreadProcess,
		AfxGetMainWnd()->m_hWnd, 0, &threadID);
	if (hCommThread == NULL)
	{
		::AfxMessageBox("创建串口1处理线程失败");
		::PostQuitMessage(0);
	}
	((CButton*)GetDlgItem(IDC_HDX_SHOW))->SetCheck(ButtonCheck);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CSerialPortAPIDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CSerialPortAPIDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CSerialPortAPIDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CSerialPortAPIDlg::OnOpenport() 
{
	// TODO: Add your control notification handler code here
	//打开并设置com1
	hCom=CreateFile("COM1", GENERIC_READ|GENERIC_WRITE,
		0,NULL , OPEN_EXISTING, 0, NULL);
	if (hCom==(HANDLE)-1)
	{
		AfxMessageBox("打开COM1失败");
	}
	else
	{
		GetCommState(hCom, &wdcb);
		m_lBaudRate=wdcb.BaudRate;
		m_nByteSize=wdcb.ByteSize;
		m_nStopBits=wdcb.StopBits;
		wdcb.BaudRate=9600;//波特率：9600，其他：不变
		SetCommState (hCom, &wdcb);
		PurgeComm(hCom, PURGE_TXCLEAR);
		COMMTIMEOUTS comTimeOut;                   
		comTimeOut.ReadIntervalTimeout = MAXDWORD;
		comTimeOut.ReadTotalTimeoutMultiplier = 0;
		comTimeOut.ReadTotalTimeoutConstant = 0;
		comTimeOut.WriteTotalTimeoutMultiplier = 50;
		comTimeOut.WriteTotalTimeoutConstant = 2000;
		SetCommTimeouts(hCom,&comTimeOut);//设置超时
		GetDlgItem(IDC_OPENPORT)->EnableWindow(FALSE);
		GetDlgItem(IDC_CLOSEPORT)->EnableWindow(TRUE);
	}
}

void CSerialPortAPIDlg::OnCloseport() 
{
	// TODO: Add your control notification handler code here
	CloseHandle(hCom);
	GetDlgItem(IDC_CLOSEPORT)->EnableWindow(FALSE);
	GetDlgItem(IDC_OPENPORT)->EnableWindow(TRUE);
	AfxMessageBox("COM1 close!");
}

void CSerialPortAPIDlg::OnSend() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	DWORD wCount = 0;
	if(m_send.GetLength()>0)
	{
		if(WriteFile(hCom, m_send, m_send.GetLength(), &wCount, NULL)!=0)//发送数据
		{
			GetSendLen = m_send.GetLength();
			char s[10];
			wsprintf(s,"%d char",GetSendLen);
			SetDlgItemText(IDC_DATA,s);
		}
		else
		{
			SetDlgItemText(IDC_DATA,"NULL");
			AfxMessageBox("This port is not open");
		}
	}
}

DWORD WINAPI SerialPort1ThreadProcess( HWND hWnd)//主窗口句柄
{
	//获得类对象CSerialPortAPIDlg *pApp  = (CSerialPortAPIDlg*)AfxGetApp(); 
	CString outPut;
	CSerialPortAPIDlg gsl;
	char str[MAX_MESSAGE];
	char str2[MAX_MESSAGE];
	DWORD wCount; //读取的字节数
	while(1)
	{
		ReadFile(hCom,str, GetSendLen, &wCount, NULL);
		if(wCount > 0) //收到数据　　
		{
			str[wCount] =NULL;
			RecvLen=RecvLen+wCount;
			if(ButtonCheck==1)
			{
			for(DWORD i=0; i<wCount;i++)
			{
				wsprintf(str2,"%x",str[i]);
				RecvStr=RecvStr+strupr((char*)str2)+" ";
			}
			}
			else
			{
				RecvStr+=(char*)str;
			}
			::PostMessage(hWnd, COM_RECVDATA, (unsigned int)str, wCount); 
			//发送消息给对话框主窗口，以进行接收内容的显示
		}
	}
	return TRUE;
}

void CSerialPortAPIDlg::OnRecvData(WPARAM wParam,LPARAM lParam)
{
	//CString recvStr((char *)wParam);
	m_recv = RecvStr;
	char s[10];
	wsprintf(s,"%d char",RecvLen);
	SetDlgItemText(IDC_TOLDATA,s);
	char t[10];
	wsprintf(t,"%d char",m_recv.GetLength());
	SetDlgItemText(IDC_TOTOL,t);
	UpdateData(false);
}


void CSerialPortAPIDlg::OnClear() 
{
	// TODO: Add your control notification handler code here
	m_send="";
	UpdateData(FALSE);
	CString ss="61 7a";
	char str1[10];
	char sq[10];
	char *str="0x63";
	char *stop;
	/*
	strcpy(temp,"123"); 

	短整型(int) 
	i = atoi(temp); 
	长整型(long) 
	l = atol(temp); 
	浮点(double) 
	d = atof(temp);
*/
	char x[10];
	strtol(str,&stop,8);
	wsprintf(x,"%d",str);
	//x=str.Left(4);
	//char xx[]=x;
	wsprintf(str1,"%c",stop);
	MessageBox(str1);
}

void CSerialPortAPIDlg::OnSetport() 
{
	// TODO: Add your control notification handler code here
	SetPortDlg spd;
	if (spd.DoModal()==IDOK)
	{
		GetCommState(hCom,&wdcb);
		//long baudrate;
		//wdcb.BaudRate=spd.m_nBaudRate;
		//wdcb.ByteSize=spd.m_nByteSize;
		//wdcb.StopBits=spd.m_strStopBits;
		SetCommState(hCom,&wdcb);
	}
}

void CSerialPortAPIDlg::OnHdxShow() 
{
	// TODO: Add your control notification handler code here
	ButtonCheck=((CButton*)GetDlgItem(IDC_HDX_SHOW))->GetCheck();
}