Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
How to get a jpg from a website
Message
From
26/08/2011 11:14:06
 
 
To
26/08/2011 09:10:27
General information
Forum:
Visual FoxPro
Category:
COM/DCOM and OLE Automation
Environment versions
Visual FoxPro:
VFP 9 SP2
OS:
Windows 7
Network:
Windows 2008 Server
Database:
Visual FoxPro
Miscellaneous
Thread ID:
01521872
Message ID:
01521898
Views:
58
Thank you for your quick reply, bu sorry, it is not as 'easy' as that.

I want to download a captcha from google and present it in a vfp-form, but the captcha is not so easily isolated by automation. Interactively I can just right-click and can save the image, but I don't know how to do that automatically.
Google-captcha's do not have normal URLs.

>If you know the URL, you can use GetDataFromURL
>Strtofile(GetDataFromURL('yourURL','yourfilename.jpg')
>
>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
>
>#DEFINE INTERNET_OPEN_TYPE_PRECONFIG 0
>#DEFINE INTERNET_OPEN_TYPE_DIRECT 1
>#DEFINE INTERNET_OPEN_TYPE_PROXY 3
>#DEFINE SYNCHRONOUS 0
>#DEFINE INTERNET_FLAG_RELOAD 2147483648
>#DEFINE 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 5
>   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 )
>
>* return the URL contents
>RETURN lcRetVal
>
>
>>Hello everybody
>>
>>I automate IE9, by:
>>
>>
>>goIE = CREATEOBJECT("InternetExplorer.Application")
>>
>>
>>and by goIE.navigate() I navigate to a URL. There is a jpg-image there, which I want to get on my local disk. I do not have the slightest idea...
>>Any help appreciated!
>>
>>TIA
>>
>>Lennert
Previous
Next
Reply
Map
View

Click here to load this message in the networking platform