Returns the current wall drawing options.
The returned value represents the current wall drawing options.
It can be one (or combination) of the following enumerated values:
- DWO_NONE - the walls and floor are not displayed
- DWO_FILL_LEFT_WALL - fill the interior of the left wall, no outline
- DWO_OUTLINE_LEFT_WALL - outline the left wall, no fill
- DWO_FILL_RIGHT_WALL- fill the interior of right wall, no outline
- DWO_OUTLINE_RIGHT_WALL - outline the right wall, no fill
- DWO_FILL_FLOOR - fill the interior of floor
- DWO_OUTLINE_FLOOR - outline the floor
- DWO_DRAW_ALL - fill and outline all walls and floor
- DWO_DRAW_LEFT_WALL - fill and outline the left wall
- DWO_DRAW_RIGHT_WALL - fill and outline the right wall
- DWO_DRAW_FLOOR - fill and outline the floor
- DWO_DRAW_ALL_WALLS - fill and outline all walls, do not fill and outline the floor
- DWO_OUTLINE_ALL_WALLS - outline all walls
- DWO_OUTLINE_ALL - outline all walls and floor
- DWO_FILL_ALL - fill all walls and floor
- DWO_DEFAULT - outline all walls and floor, no fill
