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Describes the number of pages that the scanner can buffer when CAP_AUTOSCAN is enabled.
MSG_GET returns the supported values
MSG_SET sets the current number pages to be buffered (if the Source allows this to be set)
If supported, report the maximum batch buffer settings during MSG_GET. If MSG_SET is supported, limit batch buffers to the requested value for future transfers.
Type: TW_UINT
Value after MSG_OPENDS: (may be remembered from a previous session)
After MSG_RESET/MSG_RESETALL: (selected by the data source writer)
Allowed Values: 1 to 232 –1
MSG_GET TW_ONEVALUE TW_ENUMERATION TW_RANGE
MSG_GETCURRENT TW_ONEVALUE
MSG_GETDEFAULT TW_ONEVALUE
MSG_SET TW_ONEVALUE
MSG_SETCONSTRAINT TW_ONEVALUE
TW_ENUMERATION TW_RANGE
MSG_RESET TW_ONEVALUE
MSG_QUERYSUPPORT TW_ONEVALUE
When a mid- to high-volume Source supports transfer of multiple images ahead of retrieval.
Version 1.8
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The TWAIN Toolkit is distributed as is. The developer and distributors of the TWAIN Toolkit expressly disclaim all implied, express or statutory warranties including, without limitation, the implied warranties of merchantability, noninfringement of third party rights and fitness for a particular purpose. Neither the developers nor the distributors will be liable for damages, whether direct, indirect, special, incidental, or consequential, as a result of the reproduction, modification, distribution or other use of the TWAIN Toolkit.
