C++ 抓取网页的源码

1 包含头文件 #include <wininet.h>

2 导入库文件 #pragma  comment(lib,"wininet.lib");

3  使用windowsAPI 实现获取网页源码

/*获取网页的源码，参数1为网页链接，2为缓冲区指针*/
bool CfasdfasdfDlg::GetHtml(LPCTSTR szURL ,CString& getbuf)
{
	HINTERNET	hInternet, hUrl;
	char		buffer[1124];
	WCHAR		wBuffer[1124];

	DWORD		dwBytesRead = 0;
	DWORD		dwBytesWritten = 0;
	BOOL		bIsFirstPacket = true;
	BOOL		bRet = true;
	int			nNowcopyDate =0 ; 

	hInternet = InternetOpen(_T("Mozilla/4.0 (compatible)"), INTERNET_OPEN_TYPE_PRECONFIG, NULL,INTERNET_INVALID_PORT_NUMBER,0);//初始化应用程序，使用WinNet
	if (hInternet == NULL)
		return FALSE;

	hUrl = InternetOpenUrl(hInternet, szURL, NULL, 0, INTERNET_FLAG_RELOAD, 0);//打开一个资源 ftp，gopher，http开头

	if (hUrl == NULL)
	{
		
		DWORD m = GetLastError();
		return FALSE;
	}

	do
	{
		memset(buffer,