public static void Combine(object rcw, Guid iid, int dispid, Delegate d)
{
rcw = ComEventsHelper.UnwrapIfTransparentProxy(rcw);
lock (rcw)
{
ComEventsInfo local_2 = ComEventsInfo.FromObject(rcw);
ComEventsSink local_3 = local_2.FindSink(ref iid) ?? local_2.AddSink(ref iid);
(local_3.FindMethod(dispid) ?? local_3.AddMethod(dispid)).AddDelegate(d);
}
}
public override void AddEventHandler(object target, Delegate handler)
{
if (Marshal.IsComObject(target))
{
// retrieve sourceIid and dispid
GetDataForComInvocation(_innerEventInfo, out Guid sourceIid, out int dispid);
ComEventsHelper.Combine(target, sourceIid, dispid, handler);
}
else
{
// we are dealing with a managed object - just add the delegate through reflection
_innerEventInfo.AddEventHandler(target, handler);
}
}
public static Delegate Remove(object rcw, Guid iid, int dispid, Delegate d)
{
rcw = ComEventsHelper.UnwrapIfTransparentProxy(rcw);
object obj = rcw;
Delegate result;
lock (obj)
{
ComEventsInfo comEventsInfo = ComEventsInfo.Find(rcw);
if (comEventsInfo == null)
{
result = null;
}
else
{
ComEventsSink comEventsSink = comEventsInfo.FindSink(ref iid);
if (comEventsSink == null)
{
result = null;
}
else
{
ComEventsMethod comEventsMethod = comEventsSink.FindMethod(dispid);
if (comEventsMethod == null)
{
result = null;
}
else
{
comEventsMethod.RemoveDelegate(d);
if (comEventsMethod.Empty)
{
comEventsMethod = comEventsSink.RemoveMethod(comEventsMethod);
}
if (comEventsMethod == null)
{
comEventsSink = comEventsInfo.RemoveSink(comEventsSink);
}
if (comEventsSink == null)
{
Marshal.SetComObjectData(rcw, typeof(ComEventsInfo), null);
GC.SuppressFinalize(comEventsInfo);
}
result = d;
}
}
}
}
return(result);
}
public override void RemoveEventHandler(object target, Delegate handler)
{
if (Marshal.IsComObject(target))
{
Guid guid;
int num;
GetDataForComInvocation(this._innerEventInfo, out guid, out num);
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Demand();
ComEventsHelper.Remove(target, guid, num, handler);
}
else
{
this._innerEventInfo.RemoveEventHandler(target, handler);
}
}
public static void Combine(object rcw, Guid iid, int dispid, Delegate d)
{
rcw = ComEventsHelper.UnwrapIfTransparentProxy(rcw);
object obj = rcw;
lock (obj)
{
ComEventsInfo comEventsInfo = ComEventsInfo.FromObject(rcw);
ComEventsSink comEventsSink = comEventsInfo.FindSink(ref iid);
if (comEventsSink == null)
{
comEventsSink = comEventsInfo.AddSink(ref iid);
}
ComEventsMethod comEventsMethod = comEventsSink.FindMethod(dispid);
if (comEventsMethod == null)
{
comEventsMethod = comEventsSink.AddMethod(dispid);
}
comEventsMethod.AddDelegate(d);
}
}
public static Delegate Remove(object rcw, Guid iid, int dispid, Delegate d)
{
rcw = ComEventsHelper.UnwrapIfTransparentProxy(rcw);
lock (rcw)
{
ComEventsInfo local_2 = ComEventsInfo.Find(rcw);
if (local_2 == null)
{
return((Delegate)null);
}
ComEventsSink local_3 = local_2.FindSink(ref iid);
if (local_3 == null)
{
return((Delegate)null);
}
ComEventsMethod local_4 = local_3.FindMethod(dispid);
if (local_4 == null)
{
return((Delegate)null);
}
local_4.RemoveDelegate(d);
if (local_4.Empty)
{
local_4 = local_3.RemoveMethod(local_4);
}
if (local_4 == null)
{
local_3 = local_2.RemoveSink(local_3);
}
if (local_3 == null)
{
Marshal.SetComObjectData(rcw, (object)typeof(ComEventsInfo), (object)null);
GC.SuppressFinalize((object)local_2);
}
return(d);
}
}
