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| Microsoft DirectShow 9.0 |
DirectShow Data Types
Microsoft® DirectShow® provides the following type definitions.
| Data Type | Description |
| OAEVENT | Defines an Automation-compatible event handle. |
| OAFilterState | Defines the state of the filter graph. |
| OAHWND | Defines an Automation-compatible window handle. |
| REFERENCE_TIME | Defines the data type for reference time . |
| REFTIME | Defines the data type used to express time in seconds. |