test_comdlg.cpp

用MSCOMM实现的串口通信的程序

// test_comDlg.cpp : implementation file
//

#include "stdafx.h"
#include "test_com.h"
#include "test_comDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CTest_comDlg dialog

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

void CTest_comDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTest_comDlg)
	DDX_Control(pDX, IDC_EDIT_RECIVED, m_ctlRecived);
	DDX_Control(pDX, IDC_MSCOMM1, m_ctlComPort);
	DDX_Text(pDX, IDC_EDIT_RECIVED, m_strRecived);
	DDX_Text(pDX, IDC_EDIT_SEND, m_strSend);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTest_comDlg, CDialog)
	//{{AFX_MSG_MAP(CTest_comDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_BT_EXIT, OnBtExit)
	ON_BN_CLICKED(IDC_BT_OPEN_COM, OnBtOpenCom)
	ON_BN_CLICKED(IDC_BT_CLOSE_COM, OnBtCloseCom)
	ON_WM_CLOSE()
	ON_BN_CLICKED(IDC_BT_SEND_COM, OnBtSendCom)
	ON_BN_CLICKED(IDC_BT_SEND_COM_TIMER, OnBtSendComTimer)
	ON_BN_CLICKED(IDC_BT_SEND_COM_TIMER2, OnBtSendComTimerCancle)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTest_comDlg message handlers

BOOL CTest_comDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CTest_comDlg::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 CTest_comDlg::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 CTest_comDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

BEGIN_EVENTSINK_MAP(CTest_comDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CTest_comDlg)
	ON_EVENT(CTest_comDlg, IDC_MSCOMM1, 1 /* OnComm */, OnRecive, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CTest_comDlg::OnRecive() 
{
	// TODO: Add your control notification handler code here
	VARIANT m_input;
	char* str;
	int k,nEvent;
	nEvent=m_ctlComPort.GetCommEvent();
	switch(nEvent)
	{
	case 2:
		k=m_ctlComPort.GetInBufferCount();     //接收缓冲区的字符数目
		if(k>0)
		{
			m_input=m_ctlComPort.GetInput();
			str = (char*)calloc(k,sizeof(char));
			strcpy(str,(char*)m_input.parray->pvData);
			m_ctlRecived.ReplaceSel(str);
		}
	}
	free(str);
}

void CTest_comDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	if(nIDEvent == 0)
	{
		if(m_ctlComPort.GetPortOpen())
		{
			COleVariant newValue;
			newValue.SetString("(LPCTSTR)m_strSend,VT_BSTR\r\n",VT_BSTR);
			m_ctlComPort.SetOutput(newValue);
		}
	}
	CDialog::OnTimer(nIDEvent);
}

void CTest_comDlg::OnBtExit() 
{
	// TODO: Add your control notification handler code here
	if(m_ctlComPort.GetPortOpen())
	{
		m_ctlComPort.SetPortOpen(FALSE);
	}
	PostMessage(WM_CLOSE);
}

void CTest_comDlg::OnBtOpenCom() 
{
	// TODO: Add your control notification handler code here
	m_ctlComPort.SetPortOpen(1);
	if(m_ctlComPort.GetPortOpen())
	{
		m_ctlComPort.SetPortOpen(FALSE);
	}
	m_ctlComPort.SetPortOpen(TRUE);
	GetDlgItem(IDC_STATIC_COM_STATUS)->SetWindowText("COM:  ON");
	m_ctlComPort.SetInputMode(1);
	m_ctlComPort.SetInputLen(0);
}

void CTest_comDlg::OnBtCloseCom() 
{
	// TODO: Add your control notification handler code here
	if(m_ctlComPort.GetPortOpen())
	{
		m_ctlComPort.SetPortOpen(FALSE);
		GetDlgItem(IDC_STATIC_COM_STATUS)->SetWindowText("COM:  OFF");
	}
}

void CTest_comDlg::OnClose() 
{
	// TODO: Add your message handler code here and/or call default
	if(m_ctlComPort.GetPortOpen())
	{
		m_ctlComPort.SetPortOpen(FALSE);
		GetDlgItem(IDC_STATIC_COM_STATUS)->SetWindowText("COM:  OFF");
	}
	CDialog::OnClose();
}

void CTest_comDlg::OnBtSendCom() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if(m_ctlComPort.GetPortOpen())
	{
		COleVariant newValue;
		newValue.SetString((LPCTSTR)m_strSend,VT_BSTR);
		m_ctlComPort.SetOutput(newValue);
	}
}

void CTest_comDlg::OnBtSendComTimer() 
{
	// TODO: Add your control notification handler code here
	SetTimer(0,100,NULL);
}

void CTest_comDlg::OnBtSendComTimerCancle() 
{
	// TODO: Add your control notification handler code here
	KillTimer(0);
}