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  1. harilalmn

    Block Attributes

    harilalmn posted a topic in AutoLISP, Visual LISP & DCL

    Hi All, I am really confused of what I have below. I got this code from somewhere on net. This iterates through the attributes and extract the attribute with tag "ROOM_NAME" (while (not (eq "SEQEND" (dxf 0 (setq ent (entnext ent)))) ) (if (= (dxf 2 ent) "ROOM_NAME") (setq RmName (dxf 1 ent)) );If );While Well... Now, What is the condition the 'while' is checking here? What is that "SEQEND"? What is that "dxf" function after SEQEND with '0' (zero) as argument to it? Could someone please help?
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