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    Storing Objects in Containers

    SDK Help
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    • H
      Helper
      last edited by

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

      On 26/10/2005 at 14:40, xxxxxxxx wrote:

      User Information:
      Cinema 4D Version:   8.503 
      Platform:      Mac OSX  ; 
      Language(s) :     C++  ;

      ---------
           Hello again all.

      One of the objects in my plugin needs to store an array of other objects of a certain type in its container. I was looking at the sdk documentation and did not see any way of storing a BaseObject in a container. Is there some easy way to do this or do I need to do something like store the names of all the objects and search for them each time I need them?

      Thanks.

      Aaron M

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      • H
        Helper
        last edited by

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

        On 26/10/2005 at 14:57, xxxxxxxx wrote:

        Use BaseContainer::SetLink to store a BaseLink.

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        • H
          Helper
          last edited by

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

          On 26/10/2005 at 22:15, xxxxxxxx wrote:

          I was thinking that might be I would need to try, but I didn't quite understand the documentation. Do I have to declare a variable of the type BaseLink such as this:

          BaseLink* o1=op.GetLink();

          op being a BaseObject. The BaseLink can be an array also, correct? I haven't been able to understand much about Alloc() either. Does this apply here too?

          Thanks.

          Aaron M

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          • H
            Helper
            last edited by

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

            On 26/10/2005 at 23:26, xxxxxxxx wrote:

            The link is returned as a base-level BaseList2D class. It can store anything derived from this class (BaseObject, BaseTag, and so forth). There is also a GetObjectLink() variation which will return the pointed link as a BaseObject*. Otherwise, cast the returned pointer to the type being set:

            BaseTag* t1 = static_cast<BaseTag*>(op->GetDataInstance()->GetLink(ID_TAGLINK, baseDocument));

            BaseObject doesn't have a GetLink() method (either declared or inherited). Most of the time, you get and set your BaseLinks through the object's BaseContainer (GetDataInstance() is one way to get to it) and requires a generic LONG ID value.

            No, the link is to a single instance of one of the classes mentioned above. One link per ID only. To store multiple objects, you will need multiple IDs.

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            • H
              Helper
              last edited by

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

              On 27/10/2005 at 08:21, xxxxxxxx wrote:

              Thankyou Robert.  This will clear up a lot, and now I'll go do some experimentation and see what I can accomplish.
                                  Aaron M

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              • H
                Helper
                last edited by

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

                On 27/10/2005 at 15:41, xxxxxxxx wrote:

                A question regarding this matter.

                If you use the BaseContainer->SetLink(), does the BaseObject need to be in the document as a requirement?

                The reason I ask is that I created a BaseObject, and only using it as a reference object, so I don't add it into the document.

                Would this be saved too with SetLink?

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                • H
                  Helper
                  last edited by

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

                  On 27/10/2005 at 16:18, xxxxxxxx wrote:

                  The only thing that leads me to believe that the BaseObject must be in the document is that whenever GetLink() or a variation is called, there is a BaseDocument* argument. And there is no mention that it can be NULL.

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