Gets the drawing ID of a drawing.
(ade_dwggetid dwg_pathname)
Returns a drawing ID (real) or nil.
| dwg_pathname | Path alias and drawing file name (string) |
Code example:
(ade_aliasadd "mydwgs" "d:\\myproject\\mydrawing")
(setq dwg_id
(ade_dwggetid "mydwgs:\\mydrawing.dwg"))