This enumeration restricts barcode searching to certain orientations, or prioritizes one orientation over the other.
Values:
IG_TW_BD_HORZ |
Horizontal mode. |
IG_TW_BD_HORZVERT |
Horizontal/Vertical mode. |
IG_TW_BD_VERT |
Vertical mode. |
IG_TW_BD_VERTHORZ |
Vertical/Horizontal mode. |