: public IWinHttp

{

CWinHttp(void);

virtual ~CWinHttp(void);

virtual void SetTimeOut(int dwConnectTime, int dwSendTime, int dwRecvTime);

virtual string Request(LPCSTR lpUrl, HttpRequest type, LPCSTR lpPostData = NULL, LPCSTR lpHeader=NULL);

virtual string Request(LPCWSTR lpUrl, HttpRequest type, LPCSTR lpPostData = NULL, LPCWSTR lpHeader=NULL);

virtual void FreeInstance() { delete this; }

virtual bool DownloadFile(LPCWSTR lpUrl, LPCWSTR lpFilePath);

virtual bool DownloadToMem(LPCWSTR lpUrl, OUT void** ppBuffer, OUT int* nSize);

virtual void SetDownloadCallback(IHttpCallback* pCallback, void* pParam);

virtual HttpInterfaceError GetErrorCode() { return m_paramsData.errcode; }

virtual void AddHeader(LPCSTR key, LPCSTR value);

virtual int GetResponseCode() { return m_nResponseCode; }

bool Init();

void Release();

//init

bool InitConnect(LPCWSTR lpUrl, HttpRequest type, LPCSTR lpPostData=NULL, LPCWSTR lpHeader=NULL);

bool ConnectHttpServer(LPCWSTR lpIP, WORD wPort);

bool CreateHttpRequest(LPCWSTR lpPage, HttpRequest type, DWORD dwFlag=0);

bool SendHttpRequest(LPCSTR lpPostData=NULL, LPCWSTR lpHeader=NULL);

//query

bool QueryRawHeaders(OUT wstring& strHeaders);

bool QueryContentLength(OUT DWORD& dwLength);

int QueryStatusCode();

int m_nResponseCode;

bool m_bHttps;

HINTERNET m_hInternet;

HINTERNET m_hConnect;

HINTERNET m_hRequest;

int m_nConnTimeout;

int m_nSendTimeout;

int m_nRecvTimeout;

CHttpHeader m_header;

HttpParamsData m_paramsData;