| Microsoft DirectX 8.1 (C++) |
An ATSCTuningSpace object represents a tuning space with an ATSC network type. Microsoft provides a default ATSC tuning space with Windows XP Home Edition and Windows XP Professional, and also with DirectX 8.1. (See Default Tuning Spaces.) Third parties such as cable providers may install a custom tuning space using the SystemTuningSpaces object.
When the minimum and maximum physical channel and minor channel for a tuning space are set using these methods, the tuner will automatically “wrap around” to the minimum value when the user tries to specify a channel that is greater than the maximum value.
| Method or Property | Description |
| Clone | Creates a new copy of the object. |
| CLSID | Retrieves the CLSID of the tuning space. |
| CountryCode | Retrieves or assigns the country/region code of the tuning space (based on TAPI country/region codes). |
| CreateTuneRequest | Creates an empty (uninitialized) Tune Request object specific to this tuning space. |
| DefaultLocator | Retrieves or assigns the efault locator for this tuning space. |
| DefaultPreferredComponentTypes | Retrieves or creates a ComponentTypes collection object containing the default preferred component types specified by the user or application. |
| FriendlyName | Retrieves or assigns a user-friendly name of the tuning space. |
| InputType | Retrieves or assigns the input type, either antenna or cable, for the tuning space. |
| MaxChannel | Retrieves or assigns the highest channel number for the tuning space. |
| MaxMinorChannel | Retrieves or assigns the highest minor channel number ever provided by this tuning space. |
| MaxPhysicalChannel | Retrieves or assigns the highest physical channel number for the tuning space. |
| MinChannel | Retrieves or assigns the lowest channel number for the tuning space. |
| MinMinorChannel | Retrieves or assigns the highest minor channel number ever provided by this tuning space. |
| MinPhysicalChannel | Retrieves or assigns the lowest physical channel number for the tuning space. |
| NetworkType | Retrieves or assigns the network type of the tuning space. |
| UniqueName | Retrieves or assigns the globally unique name of the tuning space. |