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NodeData based classic plugin classes can implement NodeData::GetDEnabling(). This allows to dynamically enable and disable parameters in the Attribute Manager.

NodeData::GetDEnabling() corresponds to C4DAtom::GetEnabling().

Usage

NodeData::GetDEnabling() is called with the DescID of each parameter. The function simply returns true if the given parameter should be enabled and false if the given parameter should be disabled.

 Bool GetDEnabling(GeListNode* node, const DescID& id, const GeData& t_data, DESCFLAGS_ENABLE flags, const BaseContainer* itemdesc)
 {
 if (node == nullptr)
 return false;
 
 // check parameter ID
 switch (id[0].id)
 {
 case EXAMPLE_GENERATOR_PARAMETER_VALUE:
 {
 // get the value of another parameter
 GeData data;
 node->GetParameter(EXAMPLE_GENERATOR_PARAMETER_BOOL, data, DESCFLAGS_GET::NONE);
 
 // if true, then enable the parameter
 // if not, disable the parameter
 if (data.GetBool())
 return true;
 else
 return false;
 
 break;
 }
 }
 
 return SUPER::GetDEnabling(node, id, t_data, flags, itemdesc);
 }

The arguments of the function are:

The node itself.
The parameter DescID in question.
The parameter value.
Some flags that are currently not used.
The parameter description stored in a BaseContainer.

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