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The IFilterGraph::EnumFiltersmethod returns the enumerator interface. It is based on the COM IEnum style of enumerators.
When to Implement
This interface is implemented on the filter graph manager and is not intended for implementation by developers.
When to Use
This interface is used by applications or other filters to determine what filters exist in the filter graph.
Methods in Vtable Order
| IUnknown methods | Description |
|---|---|
| QueryInterface | Returns pointers to supported interfaces. |
| AddRef | Increments the reference count. |
| Release | Decrements the reference count. |
| IEnumFilters methods | Description |
| Next | Retrieves the specified number of filters in the enumeration sequence. |
| Skip | Skips a specified number of filters in the enumeration sequence. |
| Reset | Resets the enumeration sequence to the beginning. |
| Clone | Retrieves a duplicate enumerator containing the same enumeration state as the current one. |