ImageGear for C and C++ on Windows v19.10 - Updated
enumIGTWAINOrientation
API Reference Guide > TWAIN Component API Reference > TWAIN Component Enumerations > enumIGTWAINOrientation

This enumeration determines the edge of the "paper" with which the image's "top" is aligned.

Values:

IG_TW_OR_LANDSCAPE Equals IG_TW_OR_ROT270.
IG_TW_OR_PORTRAIT Equals IG_TW_OR_ROT0.
IG_TW_OR_ROT0 Normal orientation.
IG_TW_OR_ROT180 Rotated 180 degrees clockwise.
IG_TW_OR_ROT270 Rotated 270 degrees clockwise.
IG_TW_OR_ROT90 Rotated 90 degrees clockwise.