ctelevisedlg.cpp

来自「《Visual C++视频技术方案宝典》配套光盘」· C++ 代码 · 共 235 行

// CTeleviseDlg.cpp : implementation file
//

#include "stdafx.h"
#include "CTelevise.h"
#include "CTeleviseDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
char butter[230400];
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CCTeleviseDlg dialog

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

void CCTeleviseDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCTeleviseDlg)
	//}}AFX_DATA_MAP
}

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

/////////////////////////////////////////////////////////////////////////////
// CCTeleviseDlg message handlers

BOOL CCTeleviseDlg::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
	m_pClientSoket = new CClientSocket(this);
	char name[MAX_PATH];
	gethostname(name,MAX_PATH);
	hostent* hostInfo =  gethostbyname(name);
	CString ip =  inet_ntoa(*(in_addr*)hostInfo->h_addr_list[0]);
	if(!m_pClientSoket->Create(1000,SOCK_DGRAM,ip))
		MessageBox("套接字创建失败");
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CCTeleviseDlg::OnReceiveData()
{
	CString Addr;
	UINT Port;

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

	DWORD size = m_pClientSoket->ReceiveFrom(lpBuf,8192,Addr,Port);
	if(size == 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(temp[size-1]=='~')
	{
		strcpy(butter,(char*)lpBuf);
		m_IsStop = TRUE;

		GlobalUnlock(hGlobal);
		GlobalFree(hGlobal);
		return;
	}
		
	if(m_IsStop)
	{
		if(temp[size-1]=='^')
		{
			m_IsStop = FALSE;
			BITMAPINFOHEADER infoheader;
			infoheader.biSize = 40;
			infoheader.biWidth = 320;
			infoheader.biHeight = 240;
			infoheader.biPlanes = 1;
			infoheader.biBitCount = 24;
			infoheader.biCompression = 0;
			infoheader.biSizeImage = 230400;
			infoheader.biXPelsPerMeter = 0;
			infoheader.biYPelsPerMeter = 0;
			infoheader.biClrUsed = 0;
			infoheader.biClrImportant = 0;
			CDC* pDC = GetDC();
			SetDIBitsToDevice(pDC->m_hDC,10,10,infoheader.biWidth,infoheader.biHeight,0,0,0,infoheader.biHeight,
				butter,(LPBITMAPINFO)&infoheader,DIB_RGB_COLORS);
		}
		else 
		{
			strcat(butter,(char*)lpBuf);
			GlobalUnlock(hGlobal);
			GlobalFree(hGlobal);
		}
	}
}