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Informs the application which file formats the Source can generate (MSG_GET). Tells the Source which file formats the application can handle (MSG_SET).
TWFF_TIFF Used for document imaging. Native Linux format. Native Macintosh format memory if both application and data source are version 2.4 or later.
TWFF_PICT Native Macintosh format if either the application or the data source is TWAIN 2.3 and earlier.
TWFF_BMP Native Microsoft format
TWFF_XBM Used for document imaging
TWFF_JFIF Wrapper for JPEG images
TWFF_FPX FlashPix, used with digital cameras
TWFF_TIFFMULTI Multi-page TIFF files
TWFF_PNG An image format standard intended for use on the web, replaces GIF
TWFF_SPIFF A standard from JPEG, intended to replace JFIF, also supports JBIG
TWFF_EXIF File format for use with digital cameras.
TWFF_PDF A file format from Adobe
TWFF_JP A file format from the Joint Photographic Experts Group ISO/IEC 15444-1
TWFF_JPX A file format from the Joint Photographic Experts Group ISO/IEC 15444-2
TWFF_DEJAVU A file format from LizardTech
TWFF_PDFA A file format from Adobe PDF/A, Version 1
TWFF_PDFA A file format from Adobe PDF/A, Version 2
TWFF_PDFRASTER A simplified PDF format (https://www.pdfraster.org)
Use this ICAP to determine which formats are available for file transfers, and set the context for other capability negotiations such as ICAP_COMPRESSION.
Be sure to use the DG_CONTROL / DAT_SETUPFILEXFER / MSG_SET operation to specify the format to be used for a particular acquisition.
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: TWFF_TIFF TWFF_PICT TWFF_BMP
TWFF_XBM TWFF_JFIF TWFF_FPX TWFF_TIFFMULT TWFF_PNG TWFF_SPIFF TWFF_EXIF TWFF_PDF TWFF_JP TWFF_JPX TWFF_DEVAVU TWFF_PDFA TWFF_PDFRASTER
MSG_GET TW_ONEVALUE TW_ENUMERATION
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
None
Version 1.0
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