[Mono-dev] RE: Com Interop Patch

Jonathan S. Chambers Jonathan.Chambers at ansys.com
Fri Jan 6 12:59:02 EST 2006

The patch was too big. Attached is the patch to mono. The next email
will have the patch to mcs.

-----Original Message-----
From: Jonathan S. Chambers 
Sent: Friday, January 06, 2006 11:33 AM
To: mono-devel-list at lists.ximian.com
Subject: Com Interop Patch

	Here's a first attempt at a patch for COM Interop. This only
provides support for RCWs (Runtime Callable Wrappers), i.e. using
unmanaged COM components from managed code. This should support both
classes used from Interop Assemblies (where metadata is known), as well
as bare interface pointers (with no metadata) who are wrapped using

	The patch doesn't seem to introduce any regression failures, and
theoretically no code in this patch should even be hit unless you are
using COM Interop functionality.

	Just as a quick update, as much functionality as possible has
been moved to managed code (either in the Marshal or COMInteropHelpers
classes). This helps maintenance, doesn't bloat the runtime with
component specific code, removes compile time dependencies, etc. I'm
hoping for all code in the runtime to be generic component support code.
All specific component code (COM, XPCOM, Mainwin COM) will be in

	There's lots left to do, but this provides basic functionality.
I'm sure the patch needs cleanup before commit, so please let me know
what needs changed.


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