/// \param theAttribute an attribute to check
/// \param theArguments a filter parameters
SKETCHPLUGIN_EXPORT virtual bool isValid(const AttributePtr& theAttribute,
- const std::list<std::string>& theArguments) const;
+ const std::list<std::string>& theArguments,
+ std::string& theError) const;
protected:
/// returns true if the feature of the attribute is external