sampledlg.cpp

一个条码打印的程序.用VC写的,程序是用在手机的条形码打印.

// sampleDlg.cpp : implementation file
//
#include <windows.h>
#include "stdafx.h"
#include "sample.h"
#include "sampleDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CSampleDlg dialog

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

void CSampleDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSampleDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSampleDlg, CDialog)
	//{{AFX_MSG_MAP(CSampleDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_Send, OnSend)
	ON_BN_CLICKED(IDC_RADIO1, OnRadio1)
	ON_BN_CLICKED(IDC_RADIO2, OnRadio2)
	ON_BN_CLICKED(IDC_RADIO3, OnRadio3)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSampleDlg message handlers

BOOL CSampleDlg::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
    g_bIsConnect = false;
    strcpy(g_cPort, "0");    // LPT1

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

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

void CSampleDlg::OnOK() 
{
	// TODO: Add extra validation here   
	hLibrary = LoadLibrary(TEXT("Trace.dll"));

    if(hLibrary != NULL){
	    lpfnClosePort = (PFNCLOSEPORT)GetProcAddress((struct HINSTANCE__ *)hLibrary, TEXT("closeport"));
	    lpfnSend = (PFNSEND)GetProcAddress((struct HINSTANCE__ *)hLibrary, TEXT("sendcommand"));
		lpfnOpenPort = (PFNOPENPORT)GetProcAddress((struct HINSTANCE__ *)hLibrary, TEXT("openport")); 		
       
        if(lpfnOpenPort == NULL || lpfnSend == NULL || lpfnClosePort == NULL)
	    	MessageBox("Failed!","Message");
		else{
  		    MessageBox("Connect OK!","Message");
			g_bIsConnect = true;
        }
    }
	else
        MessageBox("The file has not found!","Message");

	//CDialog::OnOK();
}

void CSampleDlg::OnSend() 
{
	// TODO: Add your control notification handler code here

	if(g_bIsConnect){
          lpfnOpenPort(g_cPort);       // COM1
	
          lpfnSend("^Q30,0,0");
	      lpfnSend("^L");
	      lpfnSend("AC,10,10,1,1,1,0,VC++ SAMPLE");
	      lpfnSend("E");

		  lpfnClosePort();
    }	
}

void CSampleDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	if(hLibrary != NULL)
	    FreeLibrary((struct HINSTANCE__ *)hLibrary);

	CDialog::OnCancel();
}

void CSampleDlg::OnRadio1() 
{
	// TODO: Add your control notification handler code here
	strcpy(g_cPort, "0");    // LPT1
}

void CSampleDlg::OnRadio2() 
{
	// TODO: Add your control notification handler code here
	strcpy(g_cPort, "1");    // COM1
}

void CSampleDlg::OnRadio3() 
{
	// TODO: Add your control notification handler code here
	strcpy(g_cPort, "2");    // COM2
}