CopyTo active instance question

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 13/12/2007 at 03:19, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   10.5 
Platform:   Windows  ; Mac  ;  Mac OSX  ; 
Language(s) :     C++  ;

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Greetings,

Is there any way to find out if an instance of an ObjectData plugin created by CopyTo is active or not?

For instance, if somebody copies the object in object manager it is still active since it is being used, and if an instance is copied for undo (eg a handle is moved), it isn't active until someone actually clicks the undo button.

The reason i'm asking this is because i have to somehow remove BackgroundHandler from those undo copies, and add it again when they are actually being used.

Thanks in advance,
Miha

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 13/12/2007 at 10:02, xxxxxxxx wrote:

Ok i think i somewhat solved it with using Message (since message on 'active' instances is called after creation, and isn't in instances copied by c4d for undo).

I would still be very grateful if someone would come up with a more elegant solution

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 14/12/2007 at 03:00, xxxxxxxx wrote:

Quote: Originally posted by vuce on 13 December 2007
>
> * * *
>
> Ok i think i somewhat solved it with using Message (since message on 'active' instances is called after creation, and isn't in instances copied by c4d for undo).
>
> I would still be very grateful if someone would come up with a more elegant solution
>
>
> * * *

found out it doesn't work exactly as planned, so i'm still seeking for solution

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 14/12/2007 at 06:18, xxxxxxxx wrote:

Personally, I don't think there is a tried-and-true way to know under what circumstances the CopyTo() is being called. It could be for a copy in the Object Manager, an undo/redo, or a document cache for render or some other facility requiring a cache.

Messages are sometimes a good way to distinguish circumstances but as you've probably noticed they are not always unique enough. I had already requested messages be passed when an object is being copied for undo or redo but not holding breath.