bbbdlg.cpp

来自「《Visual C++视频技术方案宝典》配套光盘」· C++ 代码 · 共 286 行

// bbbDlg.cpp : implementation file
//

#include "stdafx.h"
#include "bbb.h"
#include "bbbDlg.h"
#include <windowsx.h>
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define WM_SOCKETMSG 10000

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CBbbDlg dialog

CBbbDlg::CBbbDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBbbDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBbbDlg)
	m_Port = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CBbbDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBbbDlg)
	DDX_Control(pDX, IDC_PICTURE, m_Picture);
	DDX_Control(pDX, IDC_IPADDRESS1, m_IP);
	DDX_Text(pDX, IDC_EDIT1, m_Port);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CBbbDlg, CDialog)
	//{{AFX_MSG_MAP(CBbbDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_MESSAGE(WM_SOCKETMSG, OnSocket) 
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBbbDlg message handlers

BOOL CBbbDlg::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
	//创建套接字
	m_Client = socket(AF_INET,SOCK_DGRAM,0);
	if (m_Client == INVALID_SOCKET)
	{
		CString str;
		str.Format("创建套接字失败，错误码:%d", WSAGetLastError());
		MessageBox(str);
	}
	m_IsStop = FALSE;
	m_Begin = FALSE;
	m_Show = 0;
	m_Port = 1000;
	CString ip = "192.168.1.77";
	m_IP.SetWindowText(ip);
	num = 0;
	UpdateData(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CBbbDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);	
	//设置协议族
	clientaddr.sin_family = AF_INET;
	//设置端口
	clientaddr.sin_port = htons(m_Port);
	CString str;
	m_IP.GetWindowText(str);
	//设置IP地址
	DWORD dwIPaddr = inet_addr(str);
	clientaddr.sin_addr.S_un.S_addr = dwIPaddr;		
	//建立绑定
	if(bind(m_Client,(SOCKADDR*)&clientaddr,sizeof(clientaddr)) == SOCKET_ERROR)
	{
		CString str1;
		str1.Format("建立绑定失败，错误码:%d", WSAGetLastError());
		MessageBox(str1);
	}	
	//设置异步选择
	WSAAsyncSelect(m_Client, GetSafeHwnd(), WM_SOCKETMSG, FD_READ);
}

HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE,8192);
void* lpBuf = GlobalLock(hGlobal);

void CBbbDlg::OnSocket(WPARAM wParam, LPARAM lParam)
{
	
	//要显示的信息
	CString sMessage;
	//SOCKADDR_IN结构大小
	int len = sizeof(local);
	//检测发生的网络事件
	int message = lParam & 0x0000FFFF;
	if(message==FD_READ) //读事件
	{
		
		//读取数据
		int ret = recvfrom(m_Client,(char*)lpBuf,8192,0,(SOCKADDR*)&local,&len);	
		if(ret == SOCKET_ERROR)
		{
			CString str;
			str.Format("接收数据失败，错误码:%d", WSAGetLastError());
			MessageBox(str);
			return;
		}
		char* temp = (char*)lpBuf;
		
		if(m_IsStop)
		{
			if((ret ==1)&&(temp[0]=='^'))
			{
				m_IsStop = FALSE;
				m_Begin = FALSE;
				file.Close();
				hBitmap = (HBITMAP)LoadImage(NULL,"c:\\a.bmp",IMAGE_BITMAP,0,0,LR_LOADFROMFILE);
				m_Picture.SetBitmap(hBitmap);
			}
			else 
			{
				if(m_Begin)
				{
					if(file.Open("C:\\a.bmp",CFile::modeCreate|CFile::modeWrite))
						file.WriteHuge(lpBuf,ret);
					m_Begin = FALSE;
				}
				else
				{
					file.WriteHuge(lpBuf,ret);
				}
			}
			
		}
		if((ret ==1)&&(temp[0]=='~'))
		{
			m_IsStop = TRUE;
			m_Begin = TRUE;
			return;
		}
		memset(lpBuf,'0',8192);
	}
	UpdateData(FALSE);
}


void CBbbDlg::OnDestroy() 
{
	GlobalUnlock(hGlobal);
	GlobalFree(hGlobal);
	CDialog::OnDestroy();
}