ccomdlg.cpp

非常不错的串口通信初级示例

// CComDlg.cpp : implementation file
//

#include "stdafx.h"
#include "CCom.h"
#include "CComDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CCComDlg dialog

CCComDlg::CCComDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCComDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCComDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	IsSended = FALSE;
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCComDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCComDlg)
	DDX_Control(pDX, IDC_EDIT1, m_data);
	DDX_Control(pDX, IDC_MSCOMM2, m_mscom);
	//}}AFX_DATA_MAP
}
BEGIN_EVENTSINK_MAP(CCComDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CCComDlg)
	ON_EVENT(CCComDlg, IDC_MSCOMM2, 1 /* OnComm */, OnOnCommMscomm2, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

BEGIN_MESSAGE_MAP(CCComDlg, CDialog)
	//{{AFX_MSG_MAP(CCComDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


/////////////////////////////////////////////////////////////////////////////
// CCComDlg message handlers

BOOL CCComDlg::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 CCComDlg::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 CCComDlg::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 CCComDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CCComDlg::OnOK() 
{
	m_mscom.SetCommPort(1); //设置串口
	m_mscom.SetRThreshold(1); //设置收到多少个字符后触发OnComm事件
	m_mscom.SetPortOpen(TRUE);	//打开串口
}

//发送数据
void CCComDlg::OnButton1() 
{
	CString str ;
	m_data.GetWindowText(str);
	IsSended = FALSE; //发送完成
	m_mscom.SetOutput((COleVariant)str);	
	IsSended = TRUE; //发送完成
	Sleep(1000); //延时1妙
}

//接收数据
void CCComDlg::OnOnCommMscomm2() 
{
	int resEvent;
	resEvent = m_mscom.GetCommEvent();
	switch (resEvent)
	{
	case 2: //接收数据
		{
			if (IsSended) //开始接收数据
			{
				VARIANT data;
				data = m_mscom.GetInput();

				CString str;
				str = data.bstrVal;
				IsSended = FALSE;
				MessageBox(str);
			}
		}
		break;	
	}		
}