Value of AscentUnit

Vertical space from top of line to the baseline.

Number of all characters in this string, includinf trailing invisible characters such as space and CR/LF.

Number of characters rendered in this string, doesn't include trailing invisible characters such as space and CR/LF.

The index of the character that is the first character in this line.

Value of ExtentUnit

Width of text itself in the line, without regard to full justification.

Value of HeightUnit

The full height of the line.

Indicates whether this is a last line of paragraph.

Value of TopUnit

Y coordinate of top edge of the line relative to top edge of the first line.