aaadlg.cpp

来自「《Visual C++视频技术方案宝典》配套光盘」· C++ 代码 · 共 324 行

// aaaDlg.cpp : implementation file
//

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

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

/////////////////////////////////////////////////////////////////////////////
// CAaaDlg dialog

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

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

BEGIN_MESSAGE_MAP(CAaaDlg, CDialog)
	//{{AFX_MSG_MAP(CAaaDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_WM_TIMER()
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAaaDlg message handlers

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

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

void CAaaDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	// 设置协议族
	serveraddr.sin_family = AF_INET;
	// 设置端口号
	serveraddr.sin_port = htons(m_Port);
	CString str;
	m_IP.GetWindowText(str);
	// 设置IP地址
	serveraddr.sin_addr.S_un.S_addr = inet_addr(str);
}

void CAaaDlg::OnButton2() 
{
	// TODO: Add your control notification handler code here
	SetTimer(1,300,NULL);
}

void CAaaDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	Grasp();
	Send();
	CDialog::OnTimer(nIDEvent);
}

void CAaaDlg::Grasp()
{
	CDC dc;
	dc.CreateDC("DISPLAY",NULL,NULL,NULL);
	CBitmap bmp;
	int Width=GetSystemMetrics(SM_CXSCREEN);
	int Height=GetSystemMetrics(SM_CYSCREEN);
	bmp.CreateCompatibleBitmap(&dc,500,400);
	CDC tdc;
	tdc.CreateCompatibleDC(&dc);
	CBitmap*pOld=tdc.SelectObject(&bmp);
	tdc.StretchBlt(0,0,500,400,&dc,0,0,Width,Height,SRCCOPY);
	tdc.SelectObject(pOld);
	BITMAP bitm;
	bmp.GetBitmap(&bitm);
	DWORD size=bitm.bmWidthBytes*bitm.bmHeight;
	LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size);

	BITMAPINFOHEADER bih;
	bih.biBitCount=bitm.bmBitsPixel;
	bih.biClrImportant=0;
	bih.biClrUsed=0;
	bih.biCompression=0;
	bih.biHeight=bitm.bmHeight;
	bih.biPlanes=1;
	bih.biSize=sizeof(BITMAPINFOHEADER);
	bih.biSizeImage=size;
	bih.biWidth=bitm.bmWidth;
	bih.biXPelsPerMeter=0;
	bih.biYPelsPerMeter=0;
	GetDIBits(dc,bmp,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS);

	CFile file;
	BITMAPFILEHEADER bfh;
	bfh.bfReserved1=bfh.bfReserved2=0;
	bfh.bfType=((WORD)('M'<< 8)|'B');
	bfh.bfSize=54+800000;
	bfh.bfOffBits=54;
	if(file.Open("C:\\b.bmp",CFile::modeCreate|CFile::modeWrite))
	{
		file.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER));
		file.WriteHuge(&bih,sizeof(BITMAPINFOHEADER));
		file.WriteHuge(lpData,800000);
		GlobalFree(lpData);
		file.Close();
	}
	
}

HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE,800054);
void* lpBuf = GlobalLock(hGlobal);

void CAaaDlg::Send()
{
	CFile file("C:\\b.bmp",CFile::modeRead);
	DWORD size = file.GetLength();
	
	file.ReadHuge(lpBuf,size);

	int ret = sendto(m_Server,"~",1,0, (SOCKADDR*) &serveraddr, sizeof(serveraddr));
	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 = (char*)lpBuf+8192*i;
		int ret = sendto(m_Server, buf, 8192, 0, (SOCKADDR*) &serveraddr, sizeof(serveraddr));
		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)
	{
		buf = (char*)lpBuf+(size-mod);
		int ret = sendto(m_Server,buf,mod,0,(SOCKADDR*)&serveraddr,sizeof(serveraddr));	
		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
	sendto(m_Server,(char*)a,1,0,(SOCKADDR*)&serveraddr,sizeof(serveraddr));
	memset(lpBuf,'0',size);
	
}

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