rasdiadlg.cpp

来自「Visual_C++.NET实用编程百例」· C++ 代码 · 共 342 行

// rasdiaDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "rasdia.h"
#include "rasdiaDlg.h"
#include "Ras.h"
#include "Raserror.h"
#include ".\rasdiadlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

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

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

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

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

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CrasdiaDlg 对话框



CrasdiaDlg::CrasdiaDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CrasdiaDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CrasdiaDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CrasdiaDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDOK, OnBnClickedOk)
	ON_BN_CLICKED(IDCANCEL, OnBnClickedCancel)
END_MESSAGE_MAP()


// CrasdiaDlg 消息处理程序

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

	// 将\“关于...\”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	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);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO: 在此添加额外的初始化代码
	DWORD dwRet,dwSize,dwEntries;
	LPBYTE lpBuf;
	LPRASENTRYNAME lpRasEntry= new RASENTRYNAME;
	lpRasEntry->dwSize=sizeof(RASENTRYNAME);
	dwSize=sizeof(RASENTRYNAME);
	dwRet=RasEnumEntries(NULL,NULL,lpRasEntry,&dwSize,&dwEntries);
	delete lpRasEntry;
	lpBuf=new BYTE[dwSize];
	lpRasEntry=(LPRASENTRYNAME)lpBuf;
	lpRasEntry->dwSize =sizeof(RASENTRYNAME);
	dwRet=RasEnumEntries(NULL,NULL,lpRasEntry,&dwSize,&dwEntries);
	CComboBox* pcbBox=(CComboBox*)GetDlgItem(IDC_COMBO1);
	if(dwSize>0)
	{
		for(DWORD i=0;i<dwEntries;lpRasEntry++,i++)
			pcbBox->AddString (lpRasEntry->szEntryName);
		pcbBox->SetCurSel (0);
	}
	else
	{
		AfxMessageBox("你必须先建立拨号网络连接",MB_OK|MB_ICONERROR);
		SendMessage(WM_CLOSE);
		return FALSE;
	}
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}

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

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CrasdiaDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		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;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CrasdiaDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

void CrasdiaDlg::OnBnClickedOk()
{
	UpdateData();
	GetDlgItem(IDOK)->EnableWindow(FALSE);
	GetDlgItem(IDC_COMBO1)->EnableWindow(FALSE);
	GetDlgItem(IDC_EDIT1)->EnableWindow(FALSE);
	GetDlgItem(IDC_EDIT2)->EnableWindow(FALSE);
	TCHAR lpszEntry[256];
	GetDlgItemText(IDC_COMBO1,lpszEntry,255);
	RASDIALPARAMS rasDial;
	rasDial.dwSize=sizeof(RASDIALPARAMS);
	lstrcpy(rasDial.szEntryName,lpszEntry);
	lstrcpy(rasDial.szPhoneNumber,_T(""));
	lstrcpy(rasDial.szCallbackNumber,_T(""));
	GetDlgItemText(IDC_EDIT1,rasDial.szUserName,UNLEN);
	GetDlgItemText(IDC_EDIT2,rasDial.szPassword,PWLEN);
	hRasConn=NULL;
	DWORD dwRet=RasDial(NULL,NULL,&rasDial,0L,NULL,&hRasConn);
	if(dwRet)
	{
		CString szMsg;
		if(RasGetErrorString((UINT)dwRet,szMsg.GetBuffer(256),256)!=0)
		{
			szMsg.ReleaseBuffer ();
			szMsg.Format (" 未知的远程访问错误，错误代码为：%ld.",dwRet);
		}
		else
			szMsg.ReleaseBuffer ();
		CString buf;
		buf.Format ("错误代码为：%ld.",dwRet);
		szMsg+=buf;
		MessageBox(szMsg,"拨号失败",MB_OK|MB_ICONSTOP);
		hRasConn=NULL;
		GetDlgItem(IDOK)->EnableWindow();
		GetDlgItem(IDC_COMBO1)->EnableWindow();
		GetDlgItem(IDC_EDIT1)->EnableWindow();
		GetDlgItem(IDC_EDIT2)->EnableWindow();
		SetDlgItemText(IDC_STATUS,"未连接，空闲");
	}
}

void CrasdiaDlg::RasDialFunc(UINT unMsg, RASCONNSTATE rasconnstate, DWORD dwError)
{
	CrasdiaDlg* dlg=(CrasdiaDlg*)AfxGetApp()->m_pMainWnd;
	dlg->PostMessage (WM_RASDIALEVENT,(WPARAM)rasconnstate,(LPARAM)dwError);
}


LRESULT CrasdiaDlg::DefWindowProc(UINT message, WPARAM wParam,LPARAM lParam)
{
	if(message==WM_RASDIALEVENT)
		return OnRasDialEvent(wParam,lParam);
	else
		return CDialog::DefWindowProc (message,wParam,lParam);
	return LRESULT();
}

LRESULT CrasdiaDlg::OnRasDialEvent(WPARAM wParam, LPARAM lParam)
{
	CString szMsg;
	CString buf;
	LoadString(AfxGetInstanceHandle(),GetRasConnState((RASCONNSTATE)wParam),buf.GetBuffer (256),256);
	szMsg.ReleaseBuffer ();
	SetDlgItemText(IDC_STATUS,"");
	SetDlgItemText(IDC_STATUS,buf);
	if(lParam)
	{
		if(RasGetErrorString((UINT)lParam,szMsg.GetBuffer (256),256)!=0)
		{
			szMsg.ReleaseBuffer ();
			szMsg.Format ("未知得远程访问错误,");
		}
		else
			szMsg.ReleaseBuffer ();
		buf.Format ("错误代码为：%ld.",lParam);
		szMsg+=buf;
		MessageBox(szMsg,"拨号失败",MB_OK|MB_ICONSTOP);
		RasHangUp(hRasConn);
		hRasConn=NULL;
		GetDlgItem(IDOK)->EnableWindow();
		GetDlgItem(IDC_COMBO1)->EnableWindow();
		GetDlgItem(IDC_EDIT1)->EnableWindow();
		GetDlgItem(IDC_EDIT2)->EnableWindow();
		SetDlgItemText(IDC_STATUS,"未连接，空闲");
	}
	else if(RASCS_DONE*wParam)
	{
		CDialog::OnOK ();
	}
	return LRESULT();
}

UINT CrasdiaDlg::GetRasConnState(RASCONNSTATE rasconn)
{
	switch(rasconn)
	{
	case RASCS_OpenPort:
		return IDS_OPENPORT;
	case RASCS_PortOpened:
		return IDS_PORTOPENED;
	case RASCS_ConnectDevice:
		return IDS_CONNECTDEVICE;
	case RASCS_DeviceConnected:
		return IDS_DEVICECONNECTED;
	case RASCS_AllDevicesConnected:
		return IDS_ALLDEVICESCONNECTED;
	case RASCS_Authenticate:
		return IDS_AUTHENTICATE;
	case RASCS_AuthNotify:
		return IDS_AUTHNOTIFY;
	case RASCS_AuthRetry:
		return IDS_AUTHRETRY;
	case RASCS_AuthCallback:
		return IDS_AUTHCALLBACK;
	case RASCS_AuthChangePassword:
		return IDS_AUTHCHANGEPASSWORD;
	case RASCS_AuthProject:
		return IDS_AUTHPROJECT;
	case RASCS_AuthLinkSpeed:
		return IDS_AUTHLINKSPEED;
	case RASCS_AuthAck:
		return IDS_AUTHACK;
	case RASCS_ReAuthenticate:
		return IDS_REAUTHENTICATE;
	case RASCS_Authenticated:
		return IDS_AUTHENTICATED;
	case RASCS_PrepareForCallback:
		return IDS_PREPAREFORCALLBACK;
	case RASCS_WaitForModemReset:
		return IDS_WAITFORMODEMRESET;
	case RASCS_WaitForCallback:
		return IDS_WAITFORCALLBACK;
	case RASCS_Interactive:
		return IDS_INTERACTIVE;
	case RASCS_RetryAuthentication:
		return IDS_RETRYAUTHENTICATION;
	case RASCS_CallbackSetByCaller:
		return IDS_CALLBACKSETBYCALLER;
	case RASCS_PasswordExpired:
		return IDS_PASSWORDEXPIRED;
	case RASCS_Connected:
		return IDS_CONNECTED;
	case RASCS_Disconnected:
		return IDS_DISCONNECTED;
	default:
		return IDS_UNDEFINED_ERROR;
	}
	return 0;
}

void CrasdiaDlg::OnBnClickedCancel()
{
	// TODO: 在此添加控件通知处理程序代码
	if(hRasConn!=NULL)
	{
		RasHangUp(hRasConn);
		hRasConn=NULL;
		GetDlgItem(IDOK)->EnableWindow();
		GetDlgItem(IDC_COMBO1)->EnableWindow();
		GetDlgItem(IDC_EDIT1)->EnableWindow();
		GetDlgItem(IDC_EDIT2)->EnableWindow();
		SetDlgItemText(IDC_STATUS,"未连接，空闲");
	}
	else
		OnCancel();
}