I need to get information Height, Length and Width of the part via VB application?
I'm sure it must be. There must be BOX or FRAME sizes which we can put the part in it.
I searched in forums but could not find unfortunately?!
Have a look at the following thread: https://forum.solidworks.com/message/827420#comment-827420
There are few macros in this form to get the bounding box (search "bounding box")
Here is one
Retrieving data ...