ImageGear for C and C++ on Windows v19.10 - Updated
IG_ISIS_TAG_SCANORIENTATION
API Reference Guide > ISIS Component API Reference > ISIS Component Tags Reference > Scanning Mode Tags > IG_ISIS_TAG_SCANORIENTATION

Orientation in which to scan. 0x0113  275

IG_ISIS_TAG_SCANORIENTATION indicates the orientation of a page in a scanner's feeder.

Type:

IG_ISIS_TAG_TYPE_SHORT

Drivers:

Drivers for scanners that support reporting of document feeder page orientation.

Values:

IG_ISIS_TAG_SCANORIENTATION can be set to any one of the following values:

Value Defined Constant Meaning
1 IG_ISIS_ORIENTATION_PORT The image data is in portrait orientation.
2 IG_ISIS_ORIENTATION_LAND The image data is in landscape orientation.
3 IG_ISIS_ORIENTATION_180 The image data is in upside-down portrait orientation.
4 IG_ISIS_ORIENTATION_270 The image data is in upside-down landscape orientation.
5 IG_ISIS_ORIENTATION_PORTM The image data is in portrait mirrored orientation.
6 IG_ISIS_ORIENTATION_LANDM The image data is in landscape mirrored orientation.
7 IG_ISIS_ORIENTATION_180M In ISIS, the image data is in upside down portrait, mirrored orientation.
8 IG_ISIS_ORIENTATION_270M The image data is in upside down landscape, mirrored orientation.

Remarks:

Some scanners have the ability to detect the orientation of a page in the feeder, and can pass this information along in IG_ISIS_TAG_SCANORIENTATION. Your application can use this information to, for example, scan only 8.5 inches of a landscape letter-sized page rather than scanning 17 inches and then cropping the data.

See Also

IG_ISIS_TAG_ORIENTATION

IG_ISIS_TAG_DATAORIENTATION