// Filter graph events
public void HandleGraphEvent(GraphEventCallback pCB)
{
if (pCB == null)
{
throw new COMException("No callback set", E_Pointer);
}
if (m_pEvent == null)
{
throw new COMException("No event pointer", E_Unexpected);
}
EventCode evCode = 0;
IntPtr param1, param2;
// Get the events from the queue.
while (Succeeded(m_pEvent.GetEvent(out evCode, out param1, out param2, 0)))
{
// Invoke the callback.
pCB.OnGraphEvent(evCode, param1, param2);
// Free the event data.
int hr = m_pEvent.FreeEventParams(evCode, param1, param2);
DsError.ThrowExceptionForHR(hr);
}
}
// Filter graph events
public void HandleGraphEvent(GraphEventCallback pCB)
{
if (pCB == null)
{
throw new COMException("No callback set", E_Pointer);
}
if (m_pEvent == null)
{
throw new COMException("No event pointer", E_Unexpected);
}
EventCode evCode = 0;
IntPtr param1, param2;
// Get the events from the queue.
while (Succeeded(m_pEvent.GetEvent(out evCode, out param1, out param2, 0)))
{
// Invoke the callback.
pCB.OnGraphEvent(evCode, param1, param2);
// Free the event data.
int hr = m_pEvent.FreeEventParams(evCode, param1, param2);
DsError.ThrowExceptionForHR(hr);
}
}