this is making my head mince !
Does anyone have any experience using :vlr-subObjModified ?
I just can't seem to get it working at all.
What I am doing in the lisp is inerting a block with two attributes. ( L & W)
Once the attribute values are inserted, another block with only one attribute is inserted
I then get the first two values, multiply them and stick the result (m2) in the second block attribute.
No problems that works fine.
The problem comes when I modify one of the original attribute values ~ The m2 attribute won't update. ~ but if I move the block, it updates fine.
I've tried using vlr-subObjModified to update the attribute ~ no go !, tried it to move the block ~ no go !
I ended up inserting acad alerts all through the code so I could check what was happening and it goes through the code ok it just doesn't apply the code to the object.
Even done a web search on it and could only find about 4 references, none any use. The autodesk forum only has 4 topics, again, none any use and the Acad help is naff all use in this area.
the only thing that seemed of any relevance was something mentioning that vlr-subObjModified doesn't work !