ImageGear for C and C++ on Windows v19.4 - Updated
enumIGPDFRotation
API Reference Guide > PDF Component API Reference > PDF Component Enumerations Reference > enumIGPDFRotation

Specifies page rotation, in degrees. Used for routines that set/get the value of a page's Rotate key.

Values:

IG_PDF_ROTATE_0 Zero rotate angle.
IG_PDF_ROTATE_90 Rotate angle is 90 degrees.
IG_PDF_ROTATE_180 Rotate angle is 180 degrees.
IG_PDF_ROTATE_270 Rotate angle is 270 degrees.