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Difference between TwSX.File and TwSX.Native

May 14, 2014 at 2:13 AM
Hi Saraff,

I scan the file using 2 ways, one is TwSX.File model, another is TwSX.Native model. For both, I did not change parameter values, both are using default values. But the scan result is very different.

For TwSX.File , the scanned result size very small.
but for TwSX.Native, the scanned result size is more big than TwSX.File.
Coordinator
May 14, 2014 at 9:40 AM
Hello, xgc521.
When you save an image obtained in native mode, use a compressed image format (e.g. jpeg) and set the required degree of compression. I've written about this before. See http://msdn.microsoft.com/en-US/library/9t4syfhh(v=vs.80).aspx and http://msdn.microsoft.com/en-US/library/ytz20d80(v=vs.80).aspx
I also highly recommend to read the TWAIN specification
Marked as answer by SARAFF on 6/23/2014 at 12:22 PM