/// <summary>
/// Queries whether a stream is selected.
/// </summary>
/// <param name="sourceReader">A valid IMFSourceReader instance.</param></param></param>
/// <param name="streamIndex">The stream to query.</param>
/// <param name="mediaType">Receives True if the stream is selected and will generate data otherwise False if the stream is not selected and will not generate data.</param>
/// <returns>If this function succeeds, it returns the S_OK member. Otherwise, it returns another HResult's member that describe the error.</returns>
public static HResult GetStreamSelection(this IMFSourceReader sourceReader, SourceReaderFirstStream streamIndex, out bool selected)
{
if (sourceReader == null)
{
throw new ArgumentNullException("sourceReader");
}
return(sourceReader.GetStreamSelection((int)streamIndex, out selected));
}
