| Baseline | Gets the distance from the top to the baseline of the current TextLine object. |
| Extent | Gets the distance from the top-most to bottom-most black pixel in a line. |
| FirstTextSourceIndex | Gets the first TextSource position of the current line. |
| HasCollapsed | Gets a value that indicates whether the line is collapsed. |
| HasOverflowed | Gets a value that indicates whether content of the line overflows the specified paragraph width. |
| Height | Gets the height of a line of text. |
| Length | Gets the total number of TextSource positions of the current line. |
| NewLineLength | Gets the number of newline characters at the end of a line. |
| OverhangAfter | Gets the distance that black pixels extend beyond the bottom alignment edge of a line. |
| OverhangLeading | Gets the distance that black pixels extend prior to the left leading alignment edge of the line. |
| OverhangTrailing | Gets the distance that black pixels extend following the right trailing alignment edge of the line. |
| Start | Gets the distance from the start of a paragraph to the starting point of a line. |
| TextLineBreak | Gets the state of the line when broken by line breaking process. |
| TextRuns | Gets the text runs that are contained within a line. |
| TrailingWhitespaceLength | Gets the number of whitespace code points beyond the last non-blank character in a line. |
| Width | Gets the width of a line of text, excluding trailing whitespace characters. |
| WidthIncludingTrailingWhitespace | Gets the width of a line of text, including trailing whitespace characters. |