How to access display tag data?

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 27/02/2003 at 03:28, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   8.012
Platform:   Windows ;
Language(s) :     C++ ;

---------
Hi,
isn't it possible to change data of a display tag?

    
    
    
    
         tag = BaseTag::Alloc(Tdisplay);  
         if (tag)  
         {  
          op->InsertTag(tag, NULL);  
          cData = tag->GetDataInstance();  
          cData->SetBool(DISPLAYTAG_AFFECT_DISPLAYMODE, TRUE);  
          cData->SetLong(DISPLAYTAG_DISPLAYMODE, DISPLAYTAG_DISPLAYMODE_WIREFRAME);  
         }

This code will insert the tag, but container data is not affected!?
To verify the ID values, I tried this:

    
    
    
    
      BaseTag *tag = op->GetTag(Tdisplay);  
      if (tag)  
      {  
       BaseContainer *cData = tag->GetDataInstance();  
       LONG i;  
       GePrint("Searching ID...");  
       for (i=1000; i<100000; i++)  
       {  
        if (cData->GetLong(i) == DISPLAYTAG_DISPLAYMODE_WIREFRAME)  
         GePrint("ID:" + LongToString(i));  
       }  
      }

Nothing. I can change any value using the gui of the tag without any effect in the container data.
What's wrong?
Analogous to Tphong and SetPhong(...), I looked for a method like "SetDisplay(...)"; without any success.
Klaus Heyne

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 27/02/2003 at 06:03, xxxxxxxx wrote:

please search this forum with a corresponding value. There was already a thread that solved this problem.

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/02/2003 at 10:12, xxxxxxxx wrote:

Thanks for the hint. But the thread you mean, handles with coffee and didn't solve the problem.
So, again a code snippet from the execute function of a plugin tag, assigned to the object, that also has the display tag:

    
    
    
    
      BaseTag *dTag = op->GetTag(Tdisplay);  
      if (dTag)  
      {  
       BaseContainer *dData = dTag->GetDataInstance();  
       dData->SetBool(DISPLAYTAG_AFFECT_DISPLAYMODE, TRUE);  
       dData->SetLong(DISPLAYTAG_DISPLAYMODE, DISPLAYTAG_DISPLAYMODE_WIREFRAME);  
       dTag->Message(MSG_UPDATE);  
      }

The debugger does not show the name of the display tag!? Should it?
Is there something wrong with GetDataInstance?
Klaus Heyne

Helper

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

On 28/02/2003 at 10:21, xxxxxxxx wrote:

Hi,
sorry. My fault. Should have looked bette. HAven´t noticed you are working with C++.
Yes, GetDataInstance is sometimes not possible (don´t ask my why. There must be a reason but I don´t know it). Use GetData to get the BaseContainer and use SetData after changing properties. This will work for the Display Tag (had the same problem some time ago).
Best
Samir