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Lists all of the information that the Source is capable of returning from a call to DAT_EXTIMAGEINFO.
This is a read only capability.
This capability mirrors CAP_SUPPORTEDCAPS. The array indicates all of the possible TWEI_ values the Source is capable of returning. It does not guarantee that all of these values will be returned for every call to DAT_EXTIMAGEINFO, because that depends on the negotiated capabilities and on what the device finds.
For instance, if the Source supports ICAP_BARCODEDETECTIONENABLED, then it may report TWEI_BARCODETEXT as part of this capability. However, if the image that was just captured has no barcode data, or if ICAP_BARCODEDETECTIONENABLED was disabled, then the Source can return TWRC_DATANOTAVAILABLE or TWRC_INFONOTSUPPORTED for that TW_INFO field, when the Application calls DAT_EXTIMAGEINFO.
The Source lists all of the TWEI_ values it is capable of returning in a call to DAT_EXTIMAGEINFO.
Type: TW_UINT
Allowed Values: An array of TWEI_ values
MSG_GET TW_ARRAY
MSG_GETCURRENT TW_ARRAY
MSG_GETDEFAULT TW_ARRAY
MSG_SET Not Allowed MSG_SETCONSTRAINT Not Allowed MSG_RESET Not Allowed MSG_QUERYSUPPORT TW_ONEVALUE
None
Version 2.1
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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.
