# PiXYZAPI > Class Inheritance * [object](https://learn.microsoft.com/dotnet/api/system.object) * [Interface](./api_interface) * PiXYZAPI *** Inherited Members * [Equals(object)](https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals\(system-object\)) * [Equals(object, object)](https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals\(system-object-system-object\)) * [GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) * [GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) * [MemberwiseClone()](https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone) * [ReferenceEquals(object, object)](https://learn.microsoft.com/dotnet/api/system.object.referenceequals) * [ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring) *** Namespace: UnityEngine.Pixyz.API ```csharp public class PiXYZAPI : Interface ``` ## Constructors ### PiXYZAPI(IntPtr) ```csharp public PiXYZAPI(IntPtr session) ``` Parameters | Type | Name | Description | | -------------------------------------------------------------- | ------- | ----------- | | [IntPtr](https://learn.microsoft.com/dotnet/api/system.intptr) | session | | ## Fields ### Session ```csharp public IntPtr Session { get; } ``` Returns | Type | Description | | -------------------------------------------------------------- | ----------- | | [IntPtr](https://learn.microsoft.com/dotnet/api/system.intptr) | | ### ProductName ```csharp public string ProductName { get; } ``` Returns | Type | Description | | -------------------------------------------------------------- | ----------- | | [string](https://learn.microsoft.com/dotnet/api/system.string) | | ### Core ```csharp public CoreInterface Core { get; } ``` Returns | Type | Description | | ------------------------------------- | ----------- | | [CoreInterface](./core_coreinterface) | | ### Geom ```csharp public GeomInterface Geom { get; } ``` Returns | Type | Description | | ------------------------------------- | ----------- | | [GeomInterface](./geom_geominterface) | | ### Material ```csharp public MaterialInterface Material { get; } ``` Returns | Type | Description | | ------------------------------------------------- | ----------- | | [MaterialInterface](./material_materialinterface) | | ### Polygonal ```csharp public PolygonalInterface Polygonal { get; } ``` Returns | Type | Description | | ---------------------------------------------------- | ----------- | | [PolygonalInterface](./polygonal_polygonalinterface) | | ### CAD ```csharp public CADInterface CAD { get; } ``` Returns | Type | Description | | ---------------------------------- | ----------- | | [CADInterface](./cad_cadinterface) | | ### Algo ```csharp public AlgoInterface Algo { get; } ``` Returns | Type | Description | | ------------------------------------- | ----------- | | [AlgoInterface](./algo_algointerface) | | ### Scene ```csharp public SceneInterface Scene { get; } ``` Returns | Type | Description | | ---------------------------------------- | ----------- | | [SceneInterface](./scene_sceneinterface) | | ### View ```csharp public ViewInterface View { get; } ``` Returns | Type | Description | | ------------------------------------- | ----------- | | [ViewInterface](./view_viewinterface) | | ### IO ```csharp public IOInterface IO { get; } ``` Returns | Type | Description | | ------------------------------- | ----------- | | [IOInterface](./io_iointerface) | | ### Unity ```csharp public UnityInterface Unity { get; } ``` Returns | Type | Description | | ---------------------------------------- | ----------- | | [UnityInterface](./unity_unityinterface) | | ### SessionId Get the session ID of the current session. ```csharp public uint SessionId { get; } ``` Returns | Type | Description | | ------------------------------------------------------------ | ----------- | | [uint](https://learn.microsoft.com/dotnet/api/system.uint32) | | ## Methods ### GetLastError ```csharp public static string GetLastError() ``` Returns | Type | Description | | -------------------------------------------------------------- | ----------- | | [string](https://learn.microsoft.com/dotnet/api/system.string) | | ### Initialize Initialize Pixyz API and create a new session. ```csharp public static PiXYZAPI Initialize(string productName = "", string validationKey = "", string[] optionalTokenList = null, string license = "") ``` Parameters | Type | Name | Description | | ------------------------------------------------------------------ | ----------------- | ------------------------------------------ | | [string](https://learn.microsoft.com/dotnet/api/system.string) | productName | Product name. | | [string](https://learn.microsoft.com/dotnet/api/system.string) | validationKey | Product validation key. | | [string\[\]](https://learn.microsoft.com/dotnet/api/system.string) | optionalTokenList | Token list to initialize the product with. | | [string](https://learn.microsoft.com/dotnet/api/system.string) | license | License file (content). | Returns | Type | Description | | -------------------------- | ----------- | | [PiXYZAPI](./api_pixyzapi) | | ### Release Release Pixyz API and clear the session. ```csharp public void Release() ``` ### ActiveSessions List all active sessions. ```csharp public static List ActiveSessions() ``` Returns | Type | Description | | --------------------------------- | ----------- | | [List\](./api_pixyzapi) | | ### SetUnityLicenseClientChannels Set the licensing channel name to use if using a Unity license. Use if the licensing client was launched by another process (e.g the Unity Hub or the Unity Editor).Should be called before initialization. ```csharp public static void SetUnityLicenseClientChannels(string channelName, string secondaryChannelName) ``` Parameters | Type | Name | Description | | -------------------------------------------------------------- | -------------------- | ------------------------------------------- | | [string](https://learn.microsoft.com/dotnet/api/system.string) | channelName | Channel name to which to connect. | | [string](https://learn.microsoft.com/dotnet/api/system.string) | secondaryChannelName | Secondary channel name to which to connect. | ### StartServer Start a Pixyz gRPC server. ```csharp public void StartServer(string host, ushort port, bool blocking = true) ``` Parameters | Type | Name | Description | | -------------------------------------------------------------- | -------- | ----------------------------------------------------------------- | | [string](https://learn.microsoft.com/dotnet/api/system.string) | host | Host address to bind to. | | [ushort](https://learn.microsoft.com/dotnet/api/system.uint16) | port | Port to listen on. | | [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | blocking | If true, blocks until server stops; if false, runs in background. | ### StartClient Connect to a Pixyz gRPC server. ```csharp public void StartClient(string host, ushort port) ``` Parameters | Type | Name | Description | | -------------------------------------------------------------- | ---- | --------------------------- | | [string](https://learn.microsoft.com/dotnet/api/system.string) | host | Host address of the server. | | [ushort](https://learn.microsoft.com/dotnet/api/system.uint16) | port | Port of the server. | ### IsRemote Returns true if the current session is a remote session (connected to a server). ```csharp public bool IsRemote() ``` Returns | Type | Description | | ------------------------------------------------------------- | ----------- | | [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | |