Scanning / TWAIN components: Difference between revisions
From DataFlex Wiki
Jump to navigationJump to search
Fixed the introduction text as It sounded as if I was the author... and I dont want to take the credits for someone else's hard work.. |
Hsymington (talk | contribs) m Added to ActiveX category |
||
| Line 35: | Line 35: | ||
==== External links ==== | ==== External links ==== | ||
*[http://www.sture.dk/wasp/articledisplay.asp?RecId=186926 Scanning / TWAIN components] | *[http://www.sture.dk/wasp/articledisplay.asp?RecId=186926 Scanning / TWAIN components] | ||
[[Category:ActiveX]] | |||
Latest revision as of 13:24, 24 June 2020
Scanning / TWAIN components
Here are the summary notes of Marco on evaluating using ActiveX objects for scanning;
The requirements were:
- Scanning fully controllable from VDF, no sticking progress windows etc.
- Save as a small compressed PDF 300dpi B/W
- PDF has no compression so large files - Constants were not enumerated in generated class - TWAIN window cannot be closed by VDF, so user must press cancel on 'foreign' dialog on completion + Cheap
+ Best compression + Also does background OCR and makes PDF searchable (the text highlites the corresponding bitmap text) + Nice continue dialog when Automatic document feeder runs out of paper - Automation is NOT provided for scanning... - Expensive
+ Small PDF ± Lots and lots of functionality; a bit daunting
+ Very small PDF + Several good simple examples, in easy to understand VB.Net + Good enumerated values + Personal email is send soon after download if you require support + Only Developer edition required. Fee distribution for Desktop applications
So, perhaps needless to say, we chosen for Dynamic Web Twain.
