| Microsoft DirectX 8.1 (C++) |
Microsoft® DirectShow® provides the following type definitions.
| Data Type | Description |
| OAEVENT | Defines an Automation-compatible event handle. |
| OAHWND | Defines an Automation-compatible window handle. |
| REFERENCE_TIME | Defines the data type for |
| REFTIME | Defines the data type used to express time in seconds. |