VertexMapTag access?

[Helper]

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On 09/11/2010 at 22:22, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   R12 
Platform:   Windows  ;   
Language(s) :     C++  ;

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How do I access VertexMapTag data in Melange?  All class variables are declared private.
In the C++ SDK, you can do:

  
 VertexMapTag *vt  = (VertexMapTag * )tag;  
 const SReal *vmap = vt->GetDataAddressR();  
 LONG vCount       = vt->GetDataCount();  

But, Melange has no such functions.  And there is no such struct as VariableTag, so I can't cast it to anything useful.
And I couldn't find any GetParameter() ids related to VertexMapTag, if there are any.