www.gusucode.com > VC++ 获取计算机名与IP-源码程序 > VC++ 获取计算机名与IP-源码程序/code/IPAdress2Dlg.cpp

    // IPAdress2Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "IPAdress2.h"
#include "IPAdress2Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CIPAdress2Dlg dialog

CIPAdress2Dlg::CIPAdress2Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CIPAdress2Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CIPAdress2Dlg)
	m_sHostName = _T("");
	m_sIPAddress = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CIPAdress2Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CIPAdress2Dlg)
	DDX_Text(pDX, IDC_HOSTNAME, m_sHostName);
	DDX_Text(pDX, IDC_IPADRESS, m_sIPAddress);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CIPAdress2Dlg, CDialog)
	//{{AFX_MSG_MAP(CIPAdress2Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CIPAdress2Dlg message handlers

BOOL CIPAdress2Dlg::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
	int nRetCode;

	nRetCode=StartUp();
	nRetCode=GetLocalHostName(m_sHostName);
	nRetCode=GetIPAddress(m_sHostName,m_sIPAddress);
	nRetCode=CleanUp();
	UpdateData(FALSE);

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

void CIPAdress2Dlg::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 CIPAdress2Dlg::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 CIPAdress2Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

int CIPAdress2Dlg::StartUp()
{
WORD wVersionRequested;//定义版本信息变量
WSADATA wsaData;//定义数据信息变量
int err;//定义错误号变量

wVersionRequested=MAKEWORD(2,0);//给版本信息复制
err=WSAStartup(wVersionRequested,&wsaData);//给错误信息赋值
if(err!=0)
	{
	return err;//告诉用户不能找到合适的版本WinSock DLL
	}
//确认Windows Sockets DLL支持2.0版本
//DLL版本可以高于2.0
//系统返回的版本号始终是最低要求的2.0，即应用程序与DLL中可支持的最低版本号
if(LOBYTE(wsaData.wVersion)!=2||HIBYTE(wsaData.wVersion)!=0)
	{
	WSACleanup();//告诉用户找不到合适的版本
	return WSAVERNOTSUPPORTED;
	}
return 0;//Windows Sockets DLL被进程接受，可以进入下一步操作
}

int CIPAdress2Dlg::GetLocalHostName(CString &sHostName)
{
char szHostName[256];
int nRetCode;
nRetCode=gethostname(szHostName,sizeof(szHostName));
if(nRetCode!=0)
	{//错误产生
sHostName=_T("Not available");
return WSAGetLastError();
	}
sHostName=szHostName;
return 0;
}

int CIPAdress2Dlg::GetIPAddress(const CString &sHostName, CString &sIPAddress)
{
struct hostent FAR *lpHostEnt=gethostbyname(sHostName);

if(lpHostEnt==NULL)
	{//错误产生
	sIPAddress=_T("");
	return WSAGetLastError();
	}
//获得IP地址
LPSTR lpAddr=lpHostEnt->h_addr_list[0];
if(lpAddr)
	{
	struct in_addr inAddr;
	memmove(&inAddr,lpAddr,4);
	//转化成标准IP地址形式
	sIPAddress=inet_ntoa(inAddr);
	if(sIPAddress.IsEmpty())
		sIPAddress=_T("Not available");
	}
return 0;
}

int CIPAdress2Dlg::CleanUp()
{
int m; 
m=WSACleanup();
return m;
}