On Sat, Jun 18, 2005 at 11:06:31PM -0700, Sam Phillips wrote:
> On Sat, Jun 18, 2005, at 14:45 EDT, Brian Chrisman wrote:
> > I have a web application which needs to do an http upload (post), but it 
> > needs to upload a scanned image.  Strange thing is the user can't scan 
> > into some temporary directory and then upload the image as an ordinary 
> > file.  (Don't ask).  The requirement is to have the web browser upload 
> > pull an image from the scanner directly.
> > I didn't imagine that such a thing would be a big problem.. but 
> > apparently it is.. has anybody heard of such a web browser plugin?  My 
> > googling has come up with very little... particularly where concerns 
> > open source.
> 
> Is it Windows or Unix?  Either way I imagine some coding would be
> involved.  You could possibly write a Mozilla plugin using
> C/Java/Mozilla magic.  I don't know how well Java could talk to SANE or
> TWAIN though.

a named pipe might help.  you'll need to write a simple program that
extracts the scanned image and writes that image to stdout.  redirect
that output to the named pipe.  the pipe can then be opened for reading
by a browser and it will read your program's output. a useful reference:

http://www2.linuxjournal.com/article/2156

the trick is getting your scanning program to run at the right time.  I
imagine this could be done using some sort of icon on the desktop or on
a toolbar.  or maybe your sane driver/program can be configured to run a
script sometime during the scanning process.

- Ben

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