Receive image from scanner

[itg-assistant]

Ben asked 2017-01-08 14:05:54 UTC

Dear support,

Is it possible to call a scanner and receive the image in a Wisej application, thanks a lot.

[itg-assistant]

Luca answered 2017-01-09 16:16:52 UTC

Hi Ben,

Anything that is possible with javascript can be done in Wisej. Unfortunately browsers don't let you use periferals. There are APIs for the camera, the geolocation device, mic, and audio, but nothing for a scanner since it would need a custom driver.

There are commercial libraries that provide either an ActiveX or Applet or a local server that responds to ajax requests from javascript. Any of those library would work well with Wisej.

Best,

Luca

[itg-assistant]

Tiago (ITG) answered 2017-01-09 20:16:17 UTC

To complement Luca's answer, I'd say ActiveX is supported only by Internet Explorer and Applets are supported only by IE and Firefox. Anyway there are (not so) fresh news about Applets: Oracle are deprecating Applets on Java 9. Have a look at Moving to a Plugin-Free Web.

There are solutions that use a scanner service to capture scanner images. Since Java 7 there is Java™ Web Start. This is kind'a Microsoft ClickOnce. The problem with ClickOnce is that it only runs on Windows. But this didn't stop Google from using ClickOnce for the Chrome installer.

[itg-assistant]

Ben answered 2017-01-28 09:47:52 UTC

Hi Tiago & Luca,

Thanks for kindly reply and help, can you please provide example for using scanner service to capture scanner images, thanks a again.

Regards,

Ben

[itg-assistant]

Tiago (ITG) answered 2017-01-31 00:38:06 UTC

Hi Ben,

Good point. I found this Commercial Soluton on the web. It's a bit on the expensive side. I guess you could find other less expensive solutions.