CAP_AUTOFEED

Description

If TRUE, the Source will automatically feed the next page from the document feeder after the number of frames negotiated for capture from each page are acquired. CAP_FEEDERENABLED must be TRUE to use this capability.

Application

Set the capability to TRUE to enable the Source’s automatic feed process, or FALSE to disable it. After the completion of each transfer, check TW_PENDINGXFERS. Count to determine if the Source has more images to transfer. A -1 means there are more images to transfer but the exact number is not known.

CAP_FEEDERLOADED indicates whether the Source’s feeder is loaded. (The automatic feed process continues whenever this capability is TRUE.)

Source

Values

If CAP_FEEDERENABLED equals FALSE, return TWRC_FAILURE / TWCC_CAPSEQERROR (capability is not supported in current settings).

If it is supported, return TWRC_SUCCESS and enable the device’s automatic feed process: After all frames negotiated for capture from each page are acquired, put the current document in the output area and advance the next document from the input area to the feeder image acquisition area. If the feeder input area is empty, the automatic feeding process is suspended but should continue when the feeder is reloaded.

Type: TW_BOOL

Value after MSG_OPENDS: (may be remembered from a previous session)

After MSG_RESET/MSG_RESETALL: TRUE

Allowed Values: TRUE or FALSE

Containers

MSG_GET TW_ONEVALUE TW_ENUMERATION // 2.0 and higher

MSG_GETCURRENT TW_ONEVALUE

MSG_GETDEFAULT TW_ONEVALUE

MSG_SET TW_ONEVALUE

MSG_SETCONSTRAINT TW_ONEVALUE

TW_ENUMERATION

MSG_RESET TW_ONEVALUE

MSG_QUERYSUPPORT TW_ONEVALUE

Required By

All Sources with Feeder Devices

TWAIN Version Introduced

Version 1.0

Related

CAP_CLEARPAGE CAP_FEEDERENABLED CAP_FEEDERLOADED CAP_FEEDPAGE CAP_REWINDPAGE