How to avoid "current viewport layout" when (ssget "a") in an empty layout space

[le-tan-phuc]

Hi, 
I have a problem when create a selection set with "ssget" in an empty  layout (have no visible object).
I think the selection set must be "nil" but it still exist an entity.

Command: (setq ss (ssget "a"))
<Selection set: c9>

Command: (entget (ssname ss 0))
((-1 . <Entity name: 185d50852b0>) (0 . "VIEWPORT") (5 . "2A3") (102 . "{ACAD_XDICTIONARY") ...

Some one please show me the way to not get this entity into selection set. thank you !
Sorry for my bad English

[ВeekeeCZ · Accepted solution]

Try this

(ssget "_X" '((0 . "VIEWPORT") (-4 . "<>") (69 . 1)))

[Kent1Cooper · Accepted solution]

The "A" and "X" modes in (ssget) will still see other things in other Layouts and in Model space.  But if that's OK, and what you want is simply for it to not see any Viewports, you can forbid it to see them:

(setq ss (ssget "_A" '((0 . "~VIEWPORT"))))

[paullimapa · Accepted solution]

in addition to @Kent1Cooper post, you may also want to include filter to look only in the current layout:

(setq ss(ssget "_X" (list '(0 . "~VIEWPORT") (cons 410 (getvar "ctab")))))

[le-tan-phuc]

Thanks for your help guys !
I found the solution to this problem.
From Vietnam, 8:20 AM-(UTC+07:00)