Hello,
i can call my Parameter, but how can i get his GUID?
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
clr.AddReference('System')
clr.AddReference("System.IO")
from System import *
from System.Reflection import *
from System.Collections.Generic import *
from System.IO import *
#Use elemIds = List[ElementId](ids) for ICollection(ElementId)
#Import the Revit Services
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application
uidoc = DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument
#Import the Revit Nodes
clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
# Import geometry conversion extension methods
clr.ImportExtensions(Revit.GeometryConversion)
#Import the Revit API
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *
element = UnwrapElement(IN[0])
look = element.LookupParameter('HauptmaterialitaetElement')
OUT = look