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#1 Posted : Thursday, September 16, 2010 11:06:45 PM(UTC)

ischoi  
ischoi

Groups: Registered
Posts: 7


Hi, Dear

I'm using a LEADTOOLS Document Imaging 13 SDK and VS6 C++.

There is some problem.
I can't find any difference between a TWAIN scanner and another scanner
Some scanners are able to set up with L_Twain API.
Despite a TWAIN scanner, executable API is only "Acquire"
Others are not, like brightness, contrast, papersize, etc.
How can I judge what a scanner is TWAIN supportable?
 

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#2 Posted : Sunday, September 19, 2010 12:08:45 AM(UTC)
Maen Hasan

Groups: Registered, Tech Support
Posts: 1,328

Was thanked: 1 time(s) in 1 post(s)

Not all capabilities are supported by all Twain devices. You can get a list of all supported capabilities from the Twain driver itself using the L_TwainGetCapability function and CAP_SUPPORTEDCAPS capability, which must be implemented by all Twain drivers.

You can also use the L_TwainEnumCapabilities() function to obtain all capabilities and their values.

Thanks,
Maen Badwan
LEADTOOLS Technical Support
 
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