Length of custom dither pattern. 0x0518 ∙ 1304
For scanners that support downloadable dithering patterns, IG_ISIS_TAG_DITHER_LENGTH1 specifies the length of the downloadable dithering pattern.
IG_ISIS_TAG_TYPE_LONG
Drivers for scanners that support at least one downloadable dither pattern.
An integer value specifying the length of the downloadable dither pattern. In a four by eight pattern, this value would be 8.
See IG_ISIS_TAG_DITHER_PATTERN1.