| Value | Meaning |
|---|---|
| DWRITE_READING_DIRECTION_LEFT_TO_RIGHT0 | <summary> Reading progresses from left to right. </summary> |
| DWRITE_READING_DIRECTION_RIGHT_TO_LEFT1 | <summary> Reading progresses from right to left. </summary> |
| DWRITE_READING_DIRECTION_TOP_TO_BOTTOM2 | <summary> Reading progresses from top to bottom. </summary> |
| DWRITE_READING_DIRECTION_BOTTOM_TO_TOP3 | <summary> Reading progresses from bottom to top. </summary> |