# Re: Have a "scan" button? Read this...

From: Karl Heinz Kremer (khk@khk.net)
Date: Thu Mar 08 2001 - 14:11:56 PST

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  On Thu, Mar 08, 2001 at 09:42:57PM +0000, Tim Waugh wrote:
  > On Thu, Mar 08, 2001 at 09:39:16PM +0000, Frederik Ramm wrote:
  >
  > > I hadn't seen it before but you're right, gbuttond does for HP
  > > scanners what my application does for the Fujitsu. I'll talk to the
  > > guy and maybe we can merge it into one application. Thanks for
  > > pointing it out.
  >
  > Oh, I'd missed that they were each for specific types of scanner.

  ... and this is IMHO the wrong approach. The right way to do it would
  be to implement one function in the backend that would report the
  button status. This way the "button scan daemon" would work with
  every backend that supports this function.

  The Fujitsu approach wont work with USB scanners, by adding it into
  the backend the interface type does no longer matter, because the
  backend would know how to query the scanner.

  Karl Heinz

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