FUNCTION getdatafromurl LPARAMETERS pcUrlName DECLARE INTEGER InternetOpen IN wininet.DLL STRING sAgent, ; INTEGER lAccessType, STRING sProxyName, ; STRING sProxyBypass, INTEGER lFlags DECLARE INTEGER InternetOpenUrl IN wininet.DLL ; INTEGER hInternetSession, STRING sUrl, STRING sHeaders,; INTEGER lHeadersLength, INTEGER lFlags, INTEGER lContext DECLARE INTEGER InternetReadFile IN wininet.DLL INTEGER hfile, ; STRING @sBuffer, INTEGER lNumberofBytesToRead, INTEGER @lBytesRead DECLARE short InternetCloseHandle IN wininet.DLL INTEGER hInst INTERNET_OPEN_TYPE_PRECONFIG =0 INTERNET_OPEN_TYPE_DIRECT =1 INTERNET_OPEN_TYPE_PROXY =3 SYNCHRONOUS =0 INTERNET_FLAG_RELOAD =2147483648 CR =CHR(13) LOCAL lsAgent, lhInternetSession, lhUrlFile, llOk, lnOk, lcRetVal, lcReadBuffer, lnBytesRead * what application is using Internet services? lsAgent = "VPF 5.0" lhInternetSession = InternetOpen( lsAgent, INTERNET_OPEN_TYPE_PRECONFIG, ; '', '', SYNCHRONOUS) * debugging line - uncomment to see session handle * WAIT WINDOW "Internet session handle: " + LTRIM(STR(hInternetSession)) IF lhInternetSession = 0 WAIT WINDOW "Internet session cannot be established" TIME 2 RETURN .NULL. ENDIF lhUrlFile = InternetOpenUrl( lhInternetSession, pcUrlName, '', 0, ; INTERNET_FLAG_RELOAD, 0) * debugging line - uncomment to see URL handle * WAIT WINDOW "URL Handle: " + LTRIM(STR(hUrlFile)) IF lhUrlFile = 0 WAIT WINDOW "URL cannot be opened" TIMEOUT 1 RETURN .NULL. ENDIF lcRetVal = "" llOk = .T. DO WHILE llOk * set aside a big buffer lsReadBuffer = SPACE(32767) lnBytesRead = 0 lnOk = InternetReadFile( lhUrlFile, @lsReadBuffer, LEN(lsReadBuffer), @lnBytesRead) IF ( lnBytesRead > 0 ) lcRetVal = lcRetVal + LEFT( lsReadBuffer, lnBytesRead ) ENDIF * error trap - either a read failure or read past eof() llOk = ( lnOk = 1 ) AND ( lnBytesRead > 0 ) ENDDO * close all the handles we opened InternetCloseHandle( lhUrlFile ) InternetCloseHandle( lhInternetSession ) CLEAR DLLS InternetOpen,InternetCloseHandle,InternetOpenUrl ,InternetReadFile * return the URL contents RETURN lcRetVal ENDFUNC
Function getfilefromurl Lparameters lcRemoteFile,lcLocalFile Local lnReturn Declare Integer URLDownloadToFile In urlmon.Dll; INTEGER pCaller, String szURL, String szFileName,; INTEGER dwReserved, Integer lpfnCB lnReturn = URLDownloadToFile (0, lcRemoteFile, lcLocalFile, 0, 0) Return lnReturn=0