#Kofax vrs api drivers#
#Kofax vrs api driver#

This is different then a lot of other Data Sources in that they send a MSG_XFERREADY before scanning a page. Third, VRS will scan a page before it sends a MSG_XFERREADY.

#Kofax vrs api driver#

It may be supported in the future, but will be limited to what the underlying scanner driver allows.

#Kofax vrs api drivers#

This was a design decision made many years ago when not a lot of scanner drivers supported this functionality.

Second, the CAP_FEEDERLOADED always returns True.

Unfortunately, if you try to set one it doesnвЂ™t complain but will return the image of the paper size last set. This is rather important as VRS uses Grayscale data to generate the Black & White image requested by the application.ДЄs for limitations within the VRS TWAIN driver there are, sadly, some. Second, the scanner must output a 256-level (8-bit) Grayscale image as a single bitmap. VRS will do its best to interface with a TWAIN driver, but sometimes there are problems that canвЂ™t be overcome. In addition, as most people on this forum can attest to, TWAIN drivers are not all alike. VRS works better with ISIS drivers because of ISISвЂ™s ability to provide easy access to Advanced Features. First, the scanner must have either an ISIS or TWAIN driver. There are, though, two criteria a scanner must pass before it can be used with VRS. You can, though, use nearly any scanner with VRS but the image quality will not be optimum. You can see a complete list of certified scanners at. The reason for this is that VRS is designed to provide superior image quality and it has to be able to control the image being provided by the scanner. To that same end, VRS works best when used with scanners that have been certified. In addition, VRS is licensed depending upon the model of scanner being used so you have to purchase a license for each scanner you want to use with VRS. In addition, there is no royalty, though, as I first mentioned you canвЂ™t include the TWAIN driver as it wonвЂ™t work without the complete package. These are, though, larger production scanners that include a hardware VRS board (Fujitsu fi-4860, fi-4990 Bell & Howell 8000 Spectrum to name a few). However, some VRS certified scanners are only supported when used with an Adrenaline board. There is no requirement to have a Kofax Adrenaline SCSI board in order to use the VRS TWAIN driver. Without the complete product installation is doesnвЂ™t work. The VRS TWAIN driver from Kofax is included as part of the VRS (VirtualReScan) product installation.