pango:font-description-size-is-absolute (desc)

desc -- a pango:font-description instance

Whether the size for the font description is in points or device units.

Determines whether the size of the font is in points (not absolute) or device units (absolute). See the pango:font-description-size and pango:font-description-set-absolute-size functions. Use the pango:font-description-set-fields function to find out if the size field of the font description was explicitly set or not.