【求助，急】对话框编程+sock问题 - VC++/MFC - C++论坛

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【求助，急】对话框编程+sock问题

写了个小程序，用的是对话框编程功能上用到了sock，编译什么的也过了，就是最后运行的时候，出问题了。
界面一开始跳出来也很正常，然后开启端口，防火墙跳出来阻止还是解除阻止的询问也来了，解除阻止后，界面就消失了（

，

），看了下任务管理器，还有看了下本地开启的端口显示程序正在监听连接。很郁闷，为什么会出现这种情况啊？？
路过的各位大大们，请不吝赐教啊。~~~急啊~~~

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第 2 楼

得分:0

呵呵，那就贴下代码，还有个问题，就是我里面的全局变量不知道用的对不对，帮忙一起看下啊~
// testDlg.cpp : implementation file
//

#include "stdafx.h"
#include "test.h"
#include "testDlg.h"
#include <WinSock2.h>
#pragma comment (lib,"Ws2_32.lib")

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

int lcport=8914;
CString port;
CString hip;
SOCKET sk;
SOCKET ssk;//accept()函数接收的sock
sockaddr_in skadrin;
sockaddr_in rskadrin;//远程主机发送过来的sockaddr_in
WSADATA wsa;

/////////////////////////////////////////////////////////////////////////////
// CTestDlg dialog

CTestDlg::CTestDlg(CWnd* pParent /*=NULL*/)
    : CDialog(CTestDlg::IDD, pParent)
{
    //{{AFX_DATA_INIT(CTestDlg)
    m_lcport = 8914;
    m_hip = _T("");
    //}}AFX_DATA_INIT
    // Note that LoadIcon does not require a subsequent DestroyIcon in Win32
    m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTestDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
    //{{AFX_DATA_MAP(CTestDlg)
    DDX_Text(pDX, IDC_lport, m_lcport);
    DDX_LBString(pDX, IDC_hostlist, m_hip);
    //}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTestDlg, CDialog)
    //{{AFX_MSG_MAP(CTestDlg)
    ON_WM_PAINT()
    ON_WM_QUERYDRAGICON()
    ON_NOTIFY_REFLECT(NM_DBLCLK, OnDblclk)//添加消息映射
    ON_BN_CLICKED(IDC_save, Onsave)
    ON_BN_CLICKED(IDC_close, Onclose)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestDlg message handlers

BOOL CTestDlg::OnInitDialog()//初始化
{
    char *tip;
    in_addr addr;
    unsigned long aip;
    CDialog::OnInitDialog();
    ((CEdit *)this->GetDlgItem(IDC_lport))->GetWindowText(port);
    lcport=atol(port);
    WSAStartup(MAKEWORD(2,0),&wsa);
    sk=socket(AF_INET,SOCK_STREAM,0);
    skadrin.sin_family=AF_INET;
    skadrin.sin_port=htons(lcport);
    skadrin.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
    bind(sk,(sockaddr *)&skadrin,sizeof(sockaddr));
    listen(sk,10);
    int len=sizeof(rskadrin);
    while(1)
    {
        ssk=accept(sk,(sockaddr *)&rskadrin,&len);
        aip=rskadrin.sin_addr.S_un.S_addr;
        memcpy(&addr.S_un.S_addr,&aip,sizeof(rskadrin.sin_addr.S_un.S_addr));
        tip=inet_ntoa(addr);
        hip=*tip+"\n";
        m_hip=hip;//hostlist 与 edit控件关联的变量
        UpdateData(false);
    }

    // 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
}

// 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 CTestDlg::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 CTestDlg::OnQueryDragIcon()
{
    return (HCURSOR) m_hIcon;
}
#include "Resource.h"
void CTestDlg::OnDblclk(NMHDR* pNMHDR, LRESULT* pResult)
{
    ::MessageBox(NULL,"test","test",MB_OK);
}
void CTestDlg::Onsave()
{
    ((CEdit *)this->GetDlgItem(IDC_lport))->GetWindowText(port);
    lcport=atol(port);
    m_lcport=lcport;//IDC_lport 控件关联的变量
}

void CTestDlg::Onclose()
{
    closesocket(sk);
    closesocket(ssk);
    WSACleanup();
}