public DirectInputGenerator(EventSize size)
: base(size)
{
_record = new EVENT_RECORD();
_recordHandle = GCHandle.Alloc(_record, GCHandleType.Pinned);
_record.EventHeader.ProviderId = new Guid("3838EF9A-CB6F-4A1C-9033-84C0E8EBF5A7");
_record.EventHeader.EventDescriptor.Id = (ushort)size;
_record.UserData = EventData.AddrOfPinnedObject();
_record.UserDataLength = (ushort)Marshal.SizeOf(EventData.Target);
}
unsafe void EtwCallback(ref EVENT_RECORD record)
{
fixed (EVENT_RECORD* p = &record)
{
EtwNativeEvent evt;
evt.record = p;
evt._data = (byte*)record.UserData.ToPointer();
evt._end = evt._data + record.UserDataLength;
evt._length = 0;
_observer.OnNext(evt);
}
}
public static extern Int32 TdhGetEventInformation(
ref EVENT_RECORD Event,
UInt32 TdhContextCount,
IntPtr TdhContext,
[Out] IntPtr eventInfoPtr,
ref Int32 BufferSize);