Instance Header API Calls
File IO API Calls
Schema Reading API Calls
Instance Reading API Calls
Instance Writing API Calls
Controling API Calls
Uncategorized API Calls
Geometry Kernel related API Calls
Deprecated API Calls (GENERIC)
Validation
Deprecated API Calls (GEOMETRY)

sdaiCreateInstance

This call creates an instance of the given entity.

Syntax

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

[DllImport(enginedll, EntryPoint = "sdaiCreateInstance")]
public static extern Int32 x86_sdaiCreateInstance(Int32 model, Int32 entity);

[DllImport(enginedll, EntryPoint = "sdaiCreateInstance")]
public static extern Int32 x64_sdaiCreateInstance(Int64 model, Int64 entity);

public static Int32 sdaiCreateInstance(Int64 model, Int64 entity)
		{
			if (IntPtr.Size == 4)
			{
				var _result = x86_sdaiCreateInstance((Int32)model, (Int32)entity);
				return _result;
			}
			else
			{
				return x64_sdaiCreateInstance(model, entity);
			}
		}

Property model

Size: 32 bit / 4 byte (value)
The handle to the model. The model handle is static during its existance. Several models can be opened simultaniously within one session. Different models are always independent, threads are allowed to be running on different models simultaniously.

Property entity

Size: 32 bit / 4 byte (value)
...

Example (based on pure API calls)

Here you can find code snippits that show how the API call sdaiCreateInstance can be used.

C++ 32 bit
C++ 64 bit
C# 32 bit
C# 64 bit
using RDF;      //  include at least engine.cs within your solution

Int64 localCreateInstanceBN(Int64 model, byte[] entityName)
{
    //
    //  This function is an alternative to the API call sdaiCreateInstanceBN()
    //  based on sdaiCreateInstance().
    //
    //  Use of sdaiCreateInstance() can lead to performance improvement compared to sdaiCreateInstanceBN().
    //
    Int64 entity = ifcengine.sdaiGetEntity(model, entityName);

    return ifcengine.sdaiCreateInstance(model, entity);
}