Author Topic: Bug report - setting viewport while gripped ents (Read 4818 times)

SMadsen · « **on:** December 10, 2003, 08:51:34 AM »

Messing with the dimension search program in another thread, I stumbled on a bug that doesn't seem to be described in the knowledge base. Just thought I'd share it here.

When restoring the active viewport in Modelspace with VLA-PUT-ACTIVEVIEWPORT, make sure that no entities are gripped.

(setq doc (vla-get-activedocument (vlax-get-acad-object)))
(setq vp (vla-get-activeviewport doc))
(vla-put-activeviewport doc vp)

^this works fine if no entities are gripped (that is, SSGETFIRST returns nil's). Having entities gripped, it will look something like this:

(vla-put-activeviewport doc vp)
; error: Exception occurred: 0xC0000005 (Access Violation)
; warning: unwind skipped on unknown exception

.. and issue a FATAL ERROR, for example: UAV Reading 0x0004 Exception at 33ed2f86h

To work around it, call (SSSETFIRST nil nil) before restoring the viewport.

Mark · « **Reply #1 on:** December 10, 2003, 09:07:31 AM »

Thanks SMadsen.

Keith™ · « **Reply #2 on:** December 10, 2003, 09:12:33 AM »

Now that really sucks now don't it...
I will make note of it.

Oh, and I KNOW that you reported it to Autodork

Mark · « **Reply #3 on:** December 10, 2003, 09:51:40 AM »

vl-catch-all-apply doesn't help either.

CAB · « **Reply #4 on:** December 10, 2003, 04:58:04 PM »

Would this work too?

(COMMAND)

daron · « **Reply #5 on:** December 10, 2003, 06:06:56 PM »

It might, but you wouldn't want to do that in an ActiveX environment.

CAB · « **Reply #6 on:** December 10, 2003, 07:05:24 PM »

Oh, forgot you shouldn't mix the two.

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Author Topic: Bug report - setting viewport while gripped ents (Read 4818 times)

SMadsen

daron