internal static void StaticDispose(ref EventProxyDescriptor pEPD)
{
Debug.Assert(((IntPtr)pEPD.m_handle) != IntPtr.Zero, "If this asserts fires: Why is it firing? It might be legal in future.");
EventProxyWrapper epw = (EventProxyWrapper)(pEPD.m_handle.Target);
((System.Runtime.InteropServices.GCHandle)(pEPD.m_handle)).Free();
}
/// <summary>
/// Create
/// </summary>
internal static void CreateMediaEventsHelper(MediaPlayer mediaPlayer,
out MediaEventsHelper eventsHelper,
out SafeMILHandle unmanagedProxy)
{
eventsHelper = new MediaEventsHelper(mediaPlayer);
// Created with ref count = 1. Since this object does not hold on
// to the unmanaged proxy, the lifetime is now controlled by whoever
// called CreateMediaEventsHelper.
unmanagedProxy = EventProxyWrapper.CreateEventProxyWrapper(eventsHelper);
}
internal static int RaiseEvent(ref EventProxyDescriptor pEPD, byte[] buffer, uint cb)
{
EventProxyWrapper target = EventProxyWrapper.FromEPD(ref pEPD);
if (target != null)
{
return(target.RaiseEvent(buffer, cb));
}
else
{
return(NativeMethods.E_HANDLE);
}
}
internal static SafeMILHandle CreateEventProxyWrapper(IInvokable invokable)
{
if (invokable == null)
{
throw new System.ArgumentNullException("invokable");
}
SafeMILHandle eventProxy = null;
EventProxyWrapper epw = new EventProxyWrapper(invokable);
EventProxyDescriptor epd = new EventProxyDescriptor();
epd.pfnDispose = EventProxyStaticPtrs.pfnDispose;
epd.pfnRaiseEvent = EventProxyStaticPtrs.pfnRaiseEvent;
epd.m_handle = System.Runtime.InteropServices.GCHandle.Alloc(epw, System.Runtime.InteropServices.GCHandleType.Normal);
HRESULT.Check(MILCreateEventProxy(ref epd, out eventProxy));
return(eventProxy);
}
internal static SafeMILHandle CreateEventProxyWrapper(IInvokable invokable)
{
if (invokable == null)
{
throw new System.ArgumentNullException("invokable");
}
SafeMILHandle eventProxy = null;
EventProxyWrapper epw = new EventProxyWrapper(invokable);
EventProxyDescriptor epd = new EventProxyDescriptor();
epd.pfnDispose = EventProxyStaticPtrs.pfnDispose;
epd.pfnRaiseEvent = EventProxyStaticPtrs.pfnRaiseEvent;
epd.m_handle = System.Runtime.InteropServices.GCHandle.Alloc(epw, System.Runtime.InteropServices.GCHandleType.Normal);
HRESULT.Check(MILCreateEventProxy(ref epd, out eventProxy));
return eventProxy;
}
