Meta information API Calls
File IO/Stream/Copy API Calls
Design Tree Classes API Calls
Design Tree Properties API Calls
Design Tree Instances API Calls
Retrieve Geometry API Calls
Derived Geometry API Calls
Deprecated API Calls
Classes
Object Properties (relations)
Datatype Properties

IsClassAncestor

Checks if the class has given ancestor Returns 0 if not or minimal generation number (1 for direct parent)

Syntax

C++ 32 bit
C++ 64 bit
C# 32 bit
C# 64 bit
public const string enginedll = @"engine.dll";

[DllImport(enginedll, EntryPoint = "IsClassAncestor")]
public static extern Int64 x86_IsClassAncestor(Int64 owlClass, Int64 ancestorOwlClass);

[DllImport(enginedll, EntryPoint = "IsClassAncestor")]
public static extern Int64 x64_IsClassAncestor(Int64 owlClass, Int64 ancestorOwlClass);

public static Int64 IsClassAncestor(Int64 owlClass, Int64 ancestorOwlClass)
		{
			if (IntPtr.Size == 4)
			{
				var _result = x86_IsClassAncestor(owlClass, ancestorOwlClass);
				return _result;
			}
			else
			{
				return x64_IsClassAncestor(owlClass, ancestorOwlClass);
			}
		}

Property owlClass

Size: 64 bit / 8 byte (value)
This attribute represents a handle to the class. The term owl is comming from W3C, the classes follow the expression power of Semantic Web concepts, therefore classes support multiple inheritance. Technically classes can also be distributed over different resources, however for this the parametric library is required as an extension on the basic Geometry Kernel API.

Property ancestorOwlClass

Size: 64 bit / 8 byte (value)
???.