| Microsoft DirectX 8.1 (C++) |
The ITuningSpace interface provides the common functionality for all network-specific tuning spaces. Applications can obtain tuning spaces from the SystemTuningSpaces collection. A tuning space generally exposes an interface that inherits ITuningSpace, such as IATSCTuningSpace.
In addition to the methods inherited from IDispatch, the ITuningSpace interface exposes the following methods.
| Method | Description |
| Clone | Creates a new copy of the tuning space. |
| CreateTuneRequest | Creates a COM object representing an empty (uninitialized) tune request. |
| EnumCategoryGUIDs | (Currently not implemented.) Creates an enumerator for the DirectShow category GUIDs, representing classes of filters that support the tuning space. |
| EnumDeviceMonikers | (Currently not implemented.) Creates an enumerator of device monikers representing the tuner inputs (filters) supporting this tuning space. |
| get__NetworkType | Retrieves the network type of the tuning space as a GUID. |
| get_CLSID | Gets the CLSID of the tuning space as a BSTR. |
| get_DefaultLocator | Retrieves the default locator for a tuning space. |
| get_DefaultPreferredComponentTypes | Returns an enumeration of the preferred component types, which specify parameters such as the preferred audio stream. |
| get_FrequencyMapping | Retrieves the frequency mapping previously created by the network provider by a call to put_FrequencyMapping. |
| get_FriendlyName | Retrieves the localized, user-friendly name of the tuning space. |
| get_NetworkType | Retrieves the network type of the tuning space as a BSTR. |
| get_UniqueName | Retrieves a unique name for the tuning space. Can be either a short name, or a GUID. |
| put__NetworkType | Sets the network type for this tuning space as a CLSID. |
| put_DefaultLocator | Sets the default locator for a tuning space. |
| put_DefaultPreferredComponentTypes | Creates an enumeration of the preferred component types, which specify parameters such as the preferred audio stream. |
| put_FrequencyMapping | Creates a frequency/channel map, frequency/transponder map, or whatever other mapping from carrier frequencies to frequency identifiers is appropriate for the tuning space. |
| put_FriendlyName | Sets the localized, user-friendly name of the tuning space. |
| put_NetworkType | Sets the network type for this tuning space as a BSTR. |
| put_UniqueName | Sets a unique name for the tuning space. Can be either a short name, or a GUID. |