[]
DWRITE_READING_DIRECTION
public enum ReadingDirection
BottomToTop = 3
DWRITE_READING_DIRECTION_BOTTOM_TO_TOP
LeftToRight = 0
DWRITE_READING_DIRECTION_LEFT_TO_RIGHT
RightToLeft = 1
DWRITE_READING_DIRECTION_RIGHT_TO_LEFT
TopToBottom = 2
DWRITE_READING_DIRECTION_TOP_TO_BOTTOM