public void GetStopTime(out long pDuration)
{
if (m_pSeek == null)
{
throw new COMException("No seek pointer", E_Unexpected);
}
int hr = m_pSeek.GetStopPosition(out pDuration);
// If we cannot get the stop time, try to get the duration.
if (Failed(hr))
{
hr = m_pSeek.GetDuration(out pDuration);
}
DsError.ThrowExceptionForHR(hr);
}
/// <summary>
/// Test the functions that read the current position
/// </summary>
void TestPosition()
{
int hr;
long pCurrent1, pStop1, pDuration1;
long pCurrent2, pStop2;
long pEarliest, pLatest;
// Read the current play position
hr = m_ims.GetCurrentPosition(out pCurrent1);
Marshal.ThrowExceptionForHR(hr);
// Read the current stop position
hr = m_ims.GetStopPosition(out pStop1);
Marshal.ThrowExceptionForHR(hr);
// Read the duraton (probably related to StopPosition - Position
hr = m_ims.GetDuration(out pDuration1);
Marshal.ThrowExceptionForHR(hr);
// Read both current and stop positions
hr = m_ims.GetPositions(out pCurrent2, out pStop2);
Marshal.ThrowExceptionForHR(hr);
// Get the cached range of values
hr = m_ims.GetAvailable(out pEarliest, out pLatest);
Marshal.ThrowExceptionForHR(hr);
// Since we aren't playing, current should be 0, stop &
// duration should be the same (the length of the clip)
Debug.Assert(pCurrent1 == 0, "CurrentPosition");
Debug.Assert(pStop1 == pDuration1, "Stop, Duration");
Debug.Assert(pCurrent1 == pCurrent2, "GetPositions");
Debug.Assert(pStop1 == pStop2, "CurrentPosition stop");
Debug.Assert(pEarliest == pCurrent1, "CurrentPosition stop");
Debug.Assert(pLatest == pStop2, "CurrentPosition stop");
}