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Scanning Documents for an Application
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Forum:
Visual FoxPro
Category:
The Mere Mortals Framework
Miscellaneous
Thread ID:
00583371
Message ID:
00583657
Views:
26
>Hi Allan,
>
>I just got an email from Jim pointing me at your message...
>
>Pointers: Windows used to include imaging controls from Kodak which you could use from any application. With the release of ME and XP they stopped due to a disagreement with Kodak (I think the only companies that haven't had disagreements with microsoft are the ones that don't exist yet).
>
>As a result, Microsoft now includes a beast called WIA (Windows Image Acquisition) and all the documentation on it is so cryptic that unless you can figure it out you should probably look into Lead Tools' imaging controls (which aren't free).
>
>If you're using Kodak controls, there's a help file in your windows/help directory with all the info you need.
>
>>1. What is the best scanning format for use with VFP and MM.
>
>There's nothing that's best in this regard. I use tiff because it's compressible, loss-less, supports multiple pages in a single page as well as annotations, and it's fairly standard in the imaging industry.
>
>>2. Can one read document text from a scanned A4 document satifactorily.
>
>You mean OCR? or if it looks good on the screen? OCR requires some other application to convert the images of the characters into actual characters.
>
>If you're talking about how they look on screen, it depends on the resolution you use (I find 200dpi adequate) and the size of the window where you display the image (you can zoom and pan).
>
>>3. Design ideas for adding documents to the database.
>
>Don't add the images directly to the tables as general fields. It will kill performance. Instead save the images are independent files with unique names and add those names to a field for this purpose.
>
>4. MM and imaging ocx.
>
>I wasn't able to use the Kodak controls in a MM form. I had to use a regular vfp form for this.
>
>I also had one case in which a MM form being called with doform() would somehow interfer with my scanning form. After days of tracing and cutting out chunks of code I found out that if instead of using the doform() function I would coppy its functionality to the place where doform() was called, it worked well. Go figure.
>
>Another, very simple alternative, is to look for scanning software that can create pdf's directly and this way you don't need to do anything in terms of programming: call the scanner when scanning's needed and call acrobat reader to display saved files.
>
>Good luck!
>
>Alex

Hi,

I just want to add a link to documentation and samples for Kodak Imaging ActiveX controls. All samples are written in VB. Search UT for the samples translated in VFP.

http://www.eistream.com/support_PRO/

HTH,
Igor Gelin
Database Developer
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