EXIF

[Natter]

Hi.

Can I get EXIF metadata from a jpg file ?

[Otto]

Hello Natter,
Have you found a solution yet? If so, can you please post some source code?

After I couldn't find a quick solution with Fivewin, I tried Javascript. There are ready-made libraries (exif-js) here.
Then I tried to call up the webpage with ActiveX. But now I'm stuck.
I haven't found out whether you can read the document object. Can I exchange data between ActiveX and Fivewin
without going through the hard drive?
Best regards,
Otto

https://www.modharbour.club/exif-js-master/example/index.html

[nageswaragunupudi]

https://docs.microsoft.com/en-us/window ... tadata-use

Maybe our GDI+ experts can help in reading meta-data from the images.

[Otto]

Dear Mr. Rao,

Navigating with activeX I get object Htmldocument. Is it possible that we get the content of the Htmldocument.

Best regards,
Otto

[Natter]

Otto, if you got a document from Active X, then work with it through the DOM

PS. And what is the relationship between EXIF and ActiveX ?

[Otto]

Hello Natter,
Thank you. Do you have some code on how to address the DOM object?

The relationship between ActiveX and Exif is that I do not know how to get the information stored in Exif with Fivewin.
But I have a javascript lib that does all I want.
Now it would be great if we could read the DOM object with all the information.
Best regards,
Otto

https://winhotel.space/exif-js-master/example/index.html

[Natter]

If under FW:

oDk:=oActX:GetProp("Document")
? oDk:getElementsByClassName("MyClass")

or other DOM commands (depending on the task)

Are you going to use the JS library ?

[TecniSoftware]

Hi.

Can I get EXIF metadata from a jpg file ?

Hello!

There is this free comnand line tool EXIFTOOL, take a look in https://exiftool.org/

Greetings

[Natter]

Thank you, an interesting utility. However, it is with the installation, which is very inconvenient.

[Otto]

Hello Alejandro,
Thank you for pointing to: https://exiftool.org/ .
I will try the software.
Best regards,
Otto

[Otto]

Good morning Natter,
I tried what you suggested but I can't find out the syntax for method and data how to access the object.

oHttp := oActiveX:GetProp( "Document" ) // -> Object Document
cClassName := oHttp:cClassname

? cClassName:innerHTML / Not working
Can you please help with some more code.

If we can access oHttp from Fivewin, we can use the "DIALOGs" from mod harbour and embed with ActiveX into Fivewin.

Best regards,
Otto

[Natter]

Don't understand what exactly is not working. Did you get the document object ?

Code: Select all  Expand view

if oDk:URL=MyUrl
  do while .T.
     if valtype(oDk:body)!="U".and.oDk:body:ReadyState-"complete"
        buf:=oDk:DocumentElement:InnerHTML
        exit
     endif
     multisec(50)
     sysrefresh()
  enddo
endif

[Otto]

Hello Natter,
Many thanks. It works now, technically.
But I think exif.js is not supported by Internet Explorer.
Do you know whether you can set Firefox or Chrome to be opened?

Best regards,
Otto

[Natter]

You think exif.js does not work under IE or you are sure of it.
Can make an HTML file where the library is connected exif.js
Run it from the ActiveX object.
Do page processing.

You can try to open another browser (shellexecute), and the parameter to it is an HTML file

Where to put the received data ?

[Otto]

Hello Natter,
Thank you.
>You think exif.js does not work under IE or you are sure of it.
Yes, I tried with Internet Explorer and js is not executed.

https://winhotel.space/exif-js-master/e ... index.html




>Can make an HTML file where the library is connected exif.js

Run it from the ActiveX object.
Do page processing.

You can try to open another browser (shellexecute), and the parameter to it is an HTML file

shellexecute(,"open","chrome.exe","https://winhotel.space/exif-js-master/example/index.html")
This is working fine but not with acticeX.
I found this now:
https://stackoverflow.com/questions/353 ... -on-chrome

>Where to put the received data ?
I store the data (buf) with memowrit().

Best regards,
Otto