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// GetWeb.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "wininet.h" 
#include "DBtest.h" 
#include "GetWeb.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// GetWeb dialog 
 
 
GetWeb::GetWeb(CWnd* pParent /*=NULL*/) 
	: CDialog(GetWeb::IDD, pParent) 
{ 
	//{{AFX_DATA_INIT(GetWeb) 
	m_out = _T(""); 
	m_url = _T(""); 
	//}}AFX_DATA_INIT 
} 
 
 
void GetWeb::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(GetWeb) 
	DDX_Text(pDX, IDC_OUT, m_out); 
	DDX_Text(pDX, IDC_URL, m_url); 
	//}}AFX_DATA_MAP 
} 
 
 
BEGIN_MESSAGE_MAP(GetWeb, CDialog) 
	//{{AFX_MSG_MAP(GetWeb) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// GetWeb message handlers 
 
BOOL GetWeb::OnInitDialog()  
{ 
	CDialog::OnInitDialog(); 
	 
	// TODO: Add extra initialization here 
	m_url="http://www.microsoft.com"; 
	UpdateData(false); 
	return TRUE;  // return TRUE unless you set the focus to a control 
	              // EXCEPTION: OCX Property Pages should return FALSE 
} 
 
CString GetWebPage(const CString& url) 
{ 
	HINTERNET hHttpFile; 
	char szSizeBuffer[32]; 
	DWORD dwLengthSizeBuffer=sizeof(szSizeBuffer); 
	DWORD dwFileSize; 
	DWORD dwBytesRead; 
	bool bSuccessful; 
	CString Contents; 
	HINTERNET m_Session; 
 
	Contents="在连接时产生了一些错误!"; 
	m_Session=::InternetOpen (NULL, 
		                     INTERNET_OPEN_TYPE_PRECONFIG, //Use registry settings 
		                      NULL, //Proxy name,null indicates use default. 
							  NULL, //List of local servers,null indicates default. 
							  0); 
    //Open the url and getting a handle for HTTp file 
	hHttpFile=::InternetOpenUrl (m_Session,(const char*)url,NULL,0,0,0); 
    if (hHttpFile) 
	{ 
		//Get the size of HTTP files 
	bool bQuery=::HttpQueryInfo (hHttpFile,HTTP_QUERY_CONTENT_LENGTH,szSizeBuffer,&dwLengthSizeBuffer,NULL); 
		if(bQuery==true) 
		{ 
			//Allocating the memory space for HTTP file contents 
			dwFileSize=atol(szSizeBuffer); 
			LPSTR szContents=Contents.GetBuffer(dwFileSize); 
			//read the HTTP file 
			bool bRead=::InternetReadFile (hHttpFile,szContents,dwFileSize,&dwBytesRead); 
			if (bRead) 
			{ 
				bSuccessful=true; 
				::InternetCloseHandle (hHttpFile); //Close the connection 
				Contents=szContents; 
			} 
		} 
		else 
		{ 
			//connection failed 
			bSuccessful=false; 
		} 
	} 
		return Contents; 
} 
 
void GetWeb::OnOK()  
{ 
 UpdateData(true); 
 if(m_url=="")  
	  MessageBox("URL中必须键入一个网址!","提示",MB_ICONINFORMATION); 
 else 
 { 
   
  m_out.Format("%s\n",GetWebPage(m_url)); 
  UpdateData(false); 
 } 
	 
	//CDialog::OnOK(); 
} 
 
int GetWeb::DoModal()  
{ 
	// TODO: Add your specialized code here and/or call the base class 
	 
	return CDialog::DoModal(); 
}