Checks if a drawing is directly attached to the project drawing.
(ade_dwgistoplevel dwg_id)
Returns T if the drawing is attached directly to the project drawing, or nil.
| dwg_id | Drawing ID (real) |
Checks if a drawing is directly attached to the project drawing.
(ade_dwgistoplevel dwg_id)
Returns T if the drawing is attached directly to the project drawing, or nil.
| dwg_id | Drawing ID (real) |