clientdlg.cpp

基于TCP/IP的网络通信技术实现了面向连接的用户与服务器间点对点异步通信

// ClientDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Client.h"
#include "ClientDlg.h"
#include "register.h"
#include "chat.h"
#include "vfw.h"

#define DEST_IP_ADDR "127.0.0.1"
#define PORT (u_short)56789
#define NO_FLAGS_SET 0
//#define FIRST 131

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

WNDPROC OldProc; //保存原映射函数
LRESULT CALLBACK NewProc(HWND,UINT,WPARAM,LPARAM);  //新映射函数
BOOL bBegin;
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CClientDlg dialog

CClientDlg::CClientDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CClientDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CClientDlg)
	m_username = _T("");
	m_userID = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(131);
}

void CClientDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CClientDlg)
	DDX_Text(pDX, IDC_USERNAME, m_username);
	DDX_Text(pDX, IDC_USERID, m_userID);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CClientDlg, CDialog)
	//{{AFX_MSG_MAP(CClientDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_REGISTER, OnRegister)
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CClientDlg message handlers

BOOL CClientDlg::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
////////////////////////////////动画//////////////////////////////////////
	if(!bBegin)
	{
		CString filename(".\\avi\\begin.avi");
	//建立视频窗口，并将句柄保存在m_VideoWnd中：
		m_VideoWnd = MCIWndCreate(
                        this->GetSafeHwnd(),
	                AfxGetInstanceHandle(),
	                WS_POPUP|WS_VISIBLE|
                        MCIWNDF_NOPLAYBAR|
                        MCIWNDF_NOMENU,
	                filename);
	//使视频窗口在屏幕上居中显示：
		RECT rect;
		int sx,sy;
		::GetWindowRect(m_VideoWnd,&rect);
		sx=(::GetSystemMetrics(SM_CXSCREEN)
                  -rect.right+rect.left)/2;
		sy=(::GetSystemMetrics(SM_CYSCREEN)
                  -rect.bottom+rect.top)/2;
		::SetWindowPos(m_VideoWnd,HWND_TOPMOST,sx,
                sy,0,0,SWP_SHOWWINDOW|SWP_NOSIZE);
	
		OldProc=(WNDPROC) ::GetWindowLong(m_VideoWnd,
                                GWL_WNDPROC);
        /* 调用SetWindowLong函数将
m_VideoWnd窗口消息处理函数的入口地址改为NewProc */
		::SetWindowLong(m_VideoWnd,GWL_WNDPROC,
                         (LONG)NewProc);
        m_VideoLength = MCIWndGetLength(m_VideoWnd); 
        //得到视频放映总长度
        MCIWndPlay(m_VideoWnd); 
        //播放视频文件
		SetTimer(1,20,NULL); 
		sndPlaySound(".\\music\\begin.wav",SND_ASYNC|SND_LOOP);
	}
//////////////////////////////////////////////////////////////////////////
	Init_net();
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CClientDlg::OnRegister() 
{
	// TODO: Add your control notification handler code here
	OnCancel();
	CRegister reg;
	reg.DoModal();
	
}

void CClientDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	
	CDialog::OnCancel();
}

void CClientDlg::OnOK() 
{
	// TODO: Add extra validation here
//	Init_net();	//初始化
	UpdateData();
	if(m_username.IsEmpty()||m_userID.IsEmpty())
		MessageBox("请输入所有信息!","网际飞标",MB_OK);
	else
	{
		if(Load())
		{
//			close(destSocket);
			closesocket(destSocket);
			CDialog::OnOK();
			MessageBox("登陆成功!","网际飞标",MB_OK);
			CChat chat;
			chat.m_username=m_username;
//			chat.res=res;
			chat.DoModal();
		}
		else
		{
			MessageBox("尚未注册或\n用户名/密码有误。","网际飞标",MB_OK);
		}
	}
}

BOOL CClientDlg::Load()	//发送"Load:"
{
////////////////////////发送登陆信息并接收反馈信息/////////////////////////////
	char sendText[100],recvText[5025];
	int numsnt,numrcv,status;
	sprintf(sendText,"Load:%s,%s",m_username,m_userID);
	numsnt=send(destSocket, sendText, strlen(sendText) + 1, NO_FLAGS_SET);
	if (numsnt != (int)strlen(sendText) + 1)
    {
		MessageBox("ERROR: Connection terminated!","网际飞标",MB_OK);
		status=closesocket(destSocket);
		if (status == SOCKET_ERROR)
			MessageBox("ERROR: closesocket unsuccessful!","网际飞标",MB_OK);
	    status=WSACleanup();
		if (status == SOCKET_ERROR)
			MessageBox("ERROR: WSACleanup unsuccessful!","网际飞标",MB_OK);
		return false;
    }

	numrcv=recv(destSocket, recvText, 5025, NO_FLAGS_SET);
	if ((numrcv == 0) || (numrcv == SOCKET_ERROR))
    {
      MessageBox("ERROR: Connection terminated!","网际飞标",MB_OK);
      status=closesocket(destSocket);
      if (status == SOCKET_ERROR)
		  MessageBox("ERROR: closesocket unsuccessful!","网际飞标",MB_OK);
      status=WSACleanup();
      if (status == SOCKET_ERROR)
		  MessageBox("ERROR: WSACleanup unsuccessful!","网际飞标",MB_OK);
      return false;
    }
	recvText[numrcv]='\0';
//////////////////////////////////////////////////////////////////////////////
/////////////////////读取返回标志和用户信息///////////////////////////////////
	char Flag[10];
	char *pos=strchr(recvText,'!');
	pos+=1;
	int len_text=strlen(recvText);
	int len_pos=strlen(pos);
	int len=len_text-len_pos;
	for(int i=0;i<len;i++)
		Flag[i]=recvText[i];
	Flag[len]='\0';
	if(strcmp(Flag,"success!")!=0)
		return false;
///////////////////////////////////////////////////////////////////////////////
///////////////////////将用户信息写入与用户名对应的文件////////////////////////
	else
	{
		CString filename;
		filename.Format(".\\data\\%s.db",m_username);
		FILE *file;
		if((file=fopen(filename,"w"))!=NULL)
		{
			fprintf(file,"%s",pos);
		}
		fclose(file);
	}
///////////////////////////////////////////////////////////////////////////////
	return true;
}

BOOL CClientDlg::Init_net()
{
	/////////////////////////网络初始化///////////////////////////////////
	status=WSAStartup(MAKEWORD(1, 1), &Data);
	if (status != 0)
		MessageBox("ERROR: WSAStartup unsuccessful!","网际飞标",MB_OK);
	destAddr=inet_addr(DEST_IP_ADDR);		//暂时定为本机使用
	memcpy(&destSockAddr.sin_addr, &destAddr,sizeof(destAddr));
	destSockAddr.sin_port=htons(PORT);
	destSockAddr.sin_family=AF_INET;
	destSocket=socket(AF_INET, SOCK_STREAM, 0);
	if (destSocket == INVALID_SOCKET)
	{
		MessageBox("ERROR: socket unsuccessful!","网际飞标",MB_OK);
		status=WSACleanup();
		if (status == SOCKET_ERROR)
			MessageBox("ERROR: WSACleanup unsuccessful!","网际飞标",MB_OK);
		return false;
	}
//////////////////////////////////////////////////////////////////////
///////////////////////////连接网络////////////////////////////////////////////
	status=connect(destSocket, (LPSOCKADDR) &destSockAddr,sizeof(destSockAddr));
	if (status == SOCKET_ERROR)
	{
		MessageBox("ERROR: connect unsuccessful!","网际飞标",MB_OK);
		status=closesocket(destSocket);
		if (status == SOCKET_ERROR)
			MessageBox("ERROR: closesocket unsuccessful!","网际飞标",MB_OK);
		status=WSACleanup();
		if (status == SOCKET_ERROR)
			MessageBox("ERROR: WSACleanup unsuccessful!","网际飞标",MB_OK);
		return false;
	}
///////////////////////////////////////////////////////////////////////////////
	return true;
}
LRESULT CALLBACK NewProc(HWND hWnd,UINT message,
                WPARAM wParam,LPARAM lParam)
{ 
    if(message==WM_LBUTTONDOWN)  //鼠标左键被按下
	{	
            CClientApp *app=(CClientApp *)AfxGetApp();
	    app->m_CanClose=true;  //可以关闭视频窗口
	}
	//如果不是鼠标左键按下消息，则调用原处理函数：
    return CallWindowProc(OldProc,hWnd,
            message,wParam,lParam);
}

void CClientDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	CClientApp *app=(CClientApp *)AfxGetApp();
    if(MCIWndGetPosition(m_VideoWnd)>=m_VideoLength ||app->m_CanClose)		
        //人为按下鼠标左键结束
      {
			KillTimer(1);     //撤消计时器
			MCIWndDestroy(m_VideoWnd);  //撤消视频窗口
			sndPlaySound(NULL,SND_ASYNC);
			AfxGetMainWnd()->ShowWindow(SW_SHOW); 
         //显示主窗口
      }
	CDialog::OnTimer(nIDEvent);
}