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The IMediaSeekinginterface is used to seek to a specific sample, frame, or indexed field. These values are indicated by a whole number, such as frame 20 of a sequence of 530. However, when asked for a reference start or end time (in seconds), the sample must have this information previously set. The CRendererPosPassThruclass, implemented on the video renderer, performs this service because the renderer is responsible for keeping track of reference time and stream time.
Member Functions
| CRendererPosPassThru | Constructs a CRendererPosPassThruobject. |
| GetMediaTime | Returns the media start and end times registered in the object. |
| RegisterMediaTime | Registers the media start and end times with the object. |
| ResetMediaTime | Resets the object's media start and end times. |