RegisterObjectDBX

Snipped from a post by James Buzbee c. 5/29/02...
;; Register ObjectDBX ActiveX services, thanks Tony T!
;; if not already registered use (RegisterObjectDBX)
(defun RegisterObjectDBX (/ dbxserver)
(cond
((vl-registry-read "HKEY_CLASSES_ROOT\\ObjectDBX.AxDbDocument\\CLSID"))
((not (setq dbxserver (findfile "AxDb15.dll")))
(alert "Error: Can't locate ObjectDBX Library (AxDb15.dll)")
)
(T
(startapp "regsvr32.exe" (strcat "/s \"" dbxserver "\""))
(or
(vl-registry-read "HKEY_CLASSES_ROOT\\ObjectDBX.AxDbDocument\\CLSID")
(alert "Error: Failed to register ObjectDBX ActiveX services.")
)
)
)
)

Notice how the first condition is satisfied by the presence of the document
class. Granted it was written before there was a difference between
ObjectDBX.AxDbDocument.1 (2000/2000i/2002) and ObjectDBX.AxDbDocument.16 (2004),
but it doesn't do anything to distinguish between 2000, 2000i, and 2002. So
whichever release last registered AxDb15.dll, that path would be in the
registry. Even if you register without the path, it seems as though the current
release's path is registered.

Okay, not a problem if you only have one of those releases installed (or use
only one), but would there be a problem if say the 2000i path was registered and
then you GetInterfaceObject from 2002, or vice versa? I just tested and it seems
to load the object either way, but I don't know what pot holes one might
run/fall into when accessing a file using the "wrong" dll. Or do they all work
just fine?

 

There was no way to have installed more than one release of
2000/2000i/2002 on one system. Unless of course you have used the
registry hack provided by Owen.
Therefore if you are looking for potholes, the best place in the whole
world is Montreal. come and see for yourself!

Viliam

 

Viliam - That's correct, but you can have more
than one AutoCAD 2000/2000i/2002 based vertical
product installed. However, I really don't know
what John is getting at, because AxDb15.dll is
identical in all R15 based products, so it should
not matter which specific copy is registered.

 

Thanks for the response, Tony.
Actually, I have LDT2i(2000i), LDT3(2002), and LDT4(2004) installed on this
laptop, plus LDT2(2000) on another PC.
But from the outside I wouldn't call the AxDb15.dll files identical...

Directory of J:\Program Files\LDD2
07/13/1999 04:01a 286,720 axdb15.dll

Directory of C:\Program Files\LDD2i
06/12/2000 04:35a 290,868 axdb15.dll

Directory of C:\Program Files\LDD3
04/23/2001 01:06a 294,964 axdb15.dll

If you're saying they can still be used interchangeably, then fine, but I wonder
what the differences are.

 

No, I don't mean that the files are identical (of course they're
not because if for no other reason, their version information is
different), but their COM interfaces, CoClasses, and type libraries
are identical and can be used interchangably.

 

Thanks, Tony.