| Microsoft DirectX 8.1 (C++) |
Enumerates pins on a filter.
The IBaseFilter::EnumPins method returns this interface. It is based on the standard Component Object Model (COM) enumerators. For more information, see the IEnumXXXX topic in the Platform SDK.
The filter graph manager uses this interface when it connects filters. Applications can use it to retrieve pins on a filter. For more information, see Enumerating Objects in a Filter Graph.
If the number of pins on the filter changes, some methods on this interface return VFW_E_ENUM_OUT_OF_SYNC. Call the IEnumPins::Reset method to resynchronize the enumerator.
In addition to the methods inherited from IUnknown, the IEnumPins interface exposes the following methods.
| Method | Description |
| Next | Retrieves a specified number of pins. |
| Skip | Skips over a specified number of pins. |
| Reset | Resets the enumeration sequence to the beginning. |
| Clone | Makes a copy of the enumerator with the same enumeration state. |