Storage of data

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 04/01/2005 at 10:24, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   8.100
Platform:   Windows ;
Language(s) :     C++ ;

---------
Hello,
i have problems storing persistent data (like member variables) in my from ObjectData derived class:

  
class C4DNode_NodeData: public ObjectData  
{  
INSTANCEOF(C4DNode_NodeData,ObjectData)  
private:  
     String teststring;  
public:  
     virtual Bool Init(GeListNode *node);  
     virtual Bool GetDDescription(GeListNode *node, Description *description,LONG &flags;);  
     void SetString(String _g);  
};  
  
...  
//the following functions are in the same order in that they are called  
  
Bool C4DNode_NodeData::Init(GeListNode *node)  
{     teststring = "initvalue";  
     return TRUE;  
}  
  
void C4DNode_NodeData::SetString(String _g)  
{     teststring = "newvalue";  
}  
  
Bool C4DNode_NodeData::GetDDescription(GeListNode *node, Description *description,LONG &flags;)  
{     ...  
     GePrint(teststring); //here is teststring "initvalue", not "newvalue"  
     ...  
}

I tried the same with a BaseContainer, but the function SetString() doesn't change the value. But if i change an existing container of my description in SetString() with ...->SetLong(TESTID, 1) the value is changed in my object. What's wrong? Is there a better way to store member variables?

Thanks for any help,
Torsten

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/01/2005 at 02:56, xxxxxxxx wrote:

Problem solved (in an unusual way).
I change my member variables by sending a message.

  
...  
void C4DNode_NodeData::SetString(String _g)  
{     String gtemp = "newvalue";  
     ((PluginObject* )this)->Message(UWM_MYOWNMESSAGE, &gtemp;);  
}  
  
Bool C4DNode_NodeData::Message(GeListNode *node, LONG type, void *t_data)  
{       
     if(type == UWM_MYOWNMESSAGE)                 
     {     String* gtemp = (String* )t_data;  
          g = gtemp->SubStr(0,gtemp->GetLength()); //found no better way to get String from String*   
     }  
     return TRUE;  
}      
...

Torsten