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NewFamilyInstance

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Click a version below to see what changed in that release vs your current frame (2026).
Identical to 2026: 2025, 2025.3, 2027
2026 current
Document.NewFamilyInstance(Curve, FamilySymbol, Level, StructuralType)
curve Curve The curve where the instance is based.
symbol FamilySymbol A FamilySymbol object that represents the type of the instance that is to be inserted.
level Level A Level object that is used as the base level for the object.
structuralType StructuralType If structural then specify the type of the component.
→ returns nullNothingnullptrFamilyInstance If creation was successful then an instance to the new object is returned, otherwise .
Document.NewFamilyInstance(Curve, FamilySymbol, Level, StructuralType)
curve Curve The curve where the instance is based.
symbol FamilySymbol A FamilySymbol object that represents the type of the instance that is to be inserted.
level Level A Level object that is used as the base level for the object.
structuralType StructuralType If structural then specify the type of the component.
→ returns nullNothingnullptrFamilyInstance If creation was successful then an instance to the new object is returned, otherwise .
Document.NewFamilyInstance(Curve, FamilySymbol, Level, StructuralType)
curve Curve The curve where the instance is based.
symbol FamilySymbol A FamilySymbol object that represents the type of the instance that is to be inserted.
level Level A Level object that is used as the base level for the object.
structuralType StructuralType If structural then specify the type of the component.
→ returns nullNothingnullptrFamilyInstance If creation was successful then an instance to the new object is returned, otherwise .
Document.NewFamilyInstance(Curve, FamilySymbol, Level, StructuralType)
curve Curve The curve where the instance is based.
symbol FamilySymbol A FamilySymbol object that represents the type of the instance that is to be inserted.
level Level A Level object that is used as the base level for the object.
structuralType StructuralType If structural then specify the type of the component.
→ returns nullNothingnullptrFamilyInstance If creation was successful then an instance to the new object is returned, otherwise .
Document.NewFamilyInstance(Curve, FamilySymbol, Level, StructuralType)
curve Curve The curve where the instance is based.
symbol FamilySymbol A FamilySymbol object that represents the type of the instance that is to be inserted.
level Level A Level object that is used as the base level for the object.
structuralType StructuralType If structural then specify the type of the component.
→ returns nullNothingnullptrFamilyInstance If creation was successful then an instance to the new object is returned, otherwise .