The value of pDuration is invalid. Stream contains live data or this method couldn't determine the duration. On return, this method sets pDuration to zero. On return, pDuration contains duration of media. WaitForSingleObject and WaitForMultipleObjects functions use the retrieved handle to watch for completion of playback.
Interface Retrieves the capabilities of a media stream that matches the specified media type.
Pointer to a value that will contain a combination of one or more of the following flags. The stream supports asynchronous sample updates. The stream has a clock. The stream supports seeking. A stream's capabilities include whether it has a clock, if it supports seeking, and whether it supports asynchronous updating.