onclick prompt user to save file?

[Zac5]

Hi,

I need to display a button on a page which when clicked prompts the user to save a particular image on their machine. I know that you can do this by right clicking your mouse button on an image, however, in this case the image will not be displayed on the screen, instead a perl script will pass a file name. How can I do this using javascript and perl, I havent as yet found out how to prompt the user with a 'save' pop-up - does anyone have any ideas please?

Thanks,

Zac

 

[AHinMaine]

AFAIK it can't be done because of mime types. The browser figures out what kind of file it is and takes appropriate action. While you could of course modify the action for the particular mime type, that would only be valid on your own machine.

--
Andy

http://www.nachoz.com

 

[icrf]

You could probably just call it octet/stream or whatever the generic, unassociated, binary information mime type is. Then the script just outputs that mime type and then binary dumps the image to the browser, and it should be smart enough to save it (but I haven't tried).

----------------------------------------------------------------------------------
...but I'm just a C man trying to see the light

 

[AHinMaine]

I don't believe so. A friend of mine wrote a sort of a thumbnailer and tried to do exactly what Zac wants. He even tried to trick it into thinking it was a different type of file, but it still figured out what type of file it actually was.

--
Andy

http://www.nachoz.com