stelevisedlg.cpp

来自「《Visual C++视频技术方案宝典》配套光盘」· C++ 代码 · 共 296 行

// STeleviseDlg.cpp : implementation file
//

#include "stdafx.h"
#include "STelevise.h"
#include "STeleviseDlg.h"
#include "vfw.h"
#pragma comment(lib,"vfw32")
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
HWND temp;
char* buffer;
DWORD size;
static LRESULT CALLBACK CaptureFun(HWND hWnd, LPVIDEOHDR lpVHdr);
//void CaptureFun(LPVOID pParam);
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CSTeleviseDlg dialog

CSTeleviseDlg::CSTeleviseDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSTeleviseDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSTeleviseDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSTeleviseDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSTeleviseDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

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

/////////////////////////////////////////////////////////////////////////////
// CSTeleviseDlg message handlers

BOOL CSTeleviseDlg::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
	//获取IP地址
	char name[MAX_PATH];
	gethostname(name,MAX_PATH);
	hostent* hostInfo = gethostbyname(name);
	CString ip =  inet_ntoa(*(in_addr*)hostInfo->h_addr_list[0]);

	m_pSocket = new CServerSocket(this);
	m_pSocket->Create(2000,SOCK_DGRAM,ip );

	BOOL value = TRUE;
	m_pSocket->SetSockOpt(SO_BROADCAST,(void*)&value,1);	

	CAPDRIVERCAPS capd;
	CAPSTATUS caps;
	tran=NULL;
	event.ResetEvent();
	AfxBeginThread(vproc,(void*)this);
	::WaitForSingleObject(event,INFINITE);

	if(capDriverConnect(videohwnd,0)==TRUE)
	{
		::SetParent(videohwnd,*this);
		
		::SetWindowLong(videohwnd,GWL_STYLE,WS_CHILD);
		::SetWindowPos(videohwnd,NULL,10,10,400,400,SWP_NOZORDER);
		::ShowWindow(videohwnd,SW_SHOW);
		capPreviewRate(videohwnd,30);
		capPreview(videohwnd,true);	
	}
	else
	{
		AfxMessageBox("创建失败");
	}
	capSetCallbackOnFrame(videohwnd,CaptureFun);
	
	SetTimer(1,200,NULL);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

UINT CSTeleviseDlg::vproc(LPVOID pParam)
{
	CSTeleviseDlg *pDlg=(CSTeleviseDlg*)pParam;
	
	HWND hwnd = capCreateCaptureWindow(NULL,WS_POPUP,0,0,10,10,0,0);
	temp = hwnd;
	if(hwnd)
	{
		pDlg->videohwnd=hwnd;
		pDlg->event.SetEvent();
	}
	MSG Msg;
	while(GetMessage(&Msg,NULL,0,0))
	{
		TranslateMessage(&Msg);
		DispatchMessage(&Msg);
	}
	return Msg.wParam;
	
}

void CSTeleviseDlg::SendData(char* lpBuf,DWORD size)
{
	SOCKADDR_IN addr;
	addr.sin_family = AF_INET;
	addr.sin_addr.S_un.S_addr= INADDR_BROADCAST;
	addr.sin_port = htons(1000);
	int ret = m_pSocket->SendTo("~",1,(SOCKADDR*)&addr,sizeof(addr));
	if(ret == SOCKET_ERROR)
	{
		CString str;
		str.Format("发送数据失败，错误码:%d",WSAGetLastError());
		MessageBox(str);
		return;
	}
	Sleep(1);
	
	char* buf;
	int mod = size%8192;
	for(int i=0;i<size/8192;i++)
	{
		buf = lpBuf+8192*i;
		int ret = m_pSocket->SendTo(buf,8192,(SOCKADDR*)&addr,sizeof(addr));
		if(ret == SOCKET_ERROR)
		{
			CString str;
			str.Format("发送数据失败，错误码:%d",WSAGetLastError());
			MessageBox(str);
			return;
		}
		Sleep(1);
	}
	if(mod!=0)
	{
		lpBuf+=size-mod;
		int ret = m_pSocket->SendTo(lpBuf,mod,(SOCKADDR*)&addr,sizeof(addr));
		if(ret == SOCKET_ERROR)
		{
			CString str;
			str.Format("发送数据失败，错误码:%d",WSAGetLastError());
			MessageBox(str);
			return;
		}
		Sleep(1);
	}

	char a[1]={'^'};          //结束符
	m_pSocket->SendTo(a,1,(SOCKADDR*)&addr,sizeof(addr));    
}

static LRESULT CALLBACK CaptureFun(HWND hWnd, LPVIDEOHDR lpVHdr)
{
	buffer = (char*)lpVHdr->lpData;
	size = lpVHdr->dwBytesUsed;
	return 1;
}

void CSTeleviseDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	SendData(buffer,size);
	CDialog::OnTimer(nIDEvent);
}