You playing with xdata, but no idea how to select/find objects? Sounds strange to me.
What language/API you are looking for, or just for User interfaces?
a) No X-data is associated with that Polyline object (X-data value not attached).
Iterate thru all objects an check for *whateveryouwant*
Has XDATA? Has Xdata from thisXY application? According to the values the wanted? Then put them to a selectionset or do whatever you want.
In Lisp, you can use lispfunction SSGET, also as User you can use FILTER command
to find toplevel object with XData of applicationXY, (not for special xdata content).
sample
(sssetfirst nil (setq ss (ssget "_X" '((-4 . "<or")(-3 ("~TEST"))(-4 . "<not")(-3 ("*"))(-4 . "not>")(-4 . "or>")))))
All TopLevel objecs with xdata of TEST application
b) Filter objects with some X-data value.
In Qselect command there is no option related to X-data. Is there any option in autocad to isolate these Polylines from a group of objects
Iterate thru all objects an check for *whateveryouwant*
Has XDATA? Has Xdata from thisXY application? According to the values the wanted? Then put them to a selectionset or do whatever you want.
In Lisp, you can use lispfunction SSGET, also as User you can use FILTER command
to find toplevel object with XData of applicationXY, (not for special xdata content).
sample
(sssetfirst nil (setq ss (ssget "_X" '((-3 ("TEST"))))))
All TopLevel objecs without xdata of TEST application
