sdaiGetEntityExtentBN

This call retrieves an aggregation that contains all instances of the entity given. Technically sdaiGetEntityExtentBN will transform into the following call

    sdaiGetEntityExtent(
            model,
            sdaiGetEntity(
                    model,
                    entityName
                )
        );

Syntax

C++ 32 bit

C++ 64 bit

C# 32 bit

C# 64 bit

public const string enginedll = @"engine.dll";

[DllImport(enginedll, EntryPoint = "sdaiGetEntityExtentBN")]
public static extern Int64 x86_sdaiGetEntityExtentBN(Int32 model, string entityName);

[DllImport(enginedll, EntryPoint = "sdaiGetEntityExtentBN")]
public static extern Int64 x64_sdaiGetEntityExtentBN(Int64 model, string entityName);

public static Int64 sdaiGetEntityExtentBN(Int64 model, string entityName)
		{
			if (IntPtr.Size == 4)
			{
				var _result = x86_sdaiGetEntityExtentBN((Int32)model, entityName);
				return _result;
			}
			else
			{
				return x64_sdaiGetEntityExtentBN(model, entityName);
			}
		}

[DllImport(enginedll, EntryPoint = "sdaiGetEntityExtentBN")]
public static extern Int64 x86_sdaiGetEntityExtentBN(Int32 model, byte[] entityName);

[DllImport(enginedll, EntryPoint = "sdaiGetEntityExtentBN")]
public static extern Int64 x64_sdaiGetEntityExtentBN(Int64 model, byte[] entityName);

public static Int64 sdaiGetEntityExtentBN(Int64 model, byte[] entityName)
		{
			if (IntPtr.Size == 4)
			{
				var _result = x86_sdaiGetEntityExtentBN((Int32)model, entityName);
				return _result;
			}
			else
			{
				return x64_sdaiGetEntityExtentBN(model, entityName);
			}
		}

Property model

Size: 64 bit / 8 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 entityName

Size: 64 bit / 8 byte (reference)
...

Example (based on pure API calls)

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

using RDF;      //  include at least engine.cs within your solution

void GetColumns(Int64 model)
{
    Int64 ifcColumnInstances = ifcengine.sdaiGetEntityExtentBN(model, "IFCCOLUMN"),
          noIfcColumnInstances = ifcengine.sdaiGetMemberCount(ifcColumnInstances);
    if (noIfcColumnInstances != 0)
    {
        for (Int64 i = 0; i < noIfcColumnInstances; i++)
        {
            Int64 ifcColumnInstance = 0;
            ifcengine.sdaiGetAggrByIndex(ifcColumnInstances, i, ifcengine.sdaiINSTANCE, out ifcColumnInstance);

            string globalId;
            ifcengine.sdaiGetAttrBN(ifcColumnInstance, "GlobalId", ifcengine.sdaiUNICODE, out globalId);

            string name;
            ifcengine.sdaiGetAttrBN(ifcColumnInstance, "Name", ifcengine.sdaiUNICODE, out name);

            string description;
            ifcengine.sdaiGetAttrBN(ifcColumnInstance, "Description", ifcengine.sdaiUNICODE, out description);
        }
    }
}