Writing a COM object totally from scratch?

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+6 Q:

Writing a COM object totally from scratch?

I just started a new job that involves lots of COM programming. I'm doing ok so far, by going on my COM fundamentals that I've picked up along my journey as a dev, but I'm the kind of guy that needs to know everything. And working with COM all day irks me since I don't know how this stuff works.

Is there a simple walk through to creating a basic COM object from scratch? I mean everything. No Visual Studio, no ATL. Just the compiler, and notepad.

+8 A:

You should read this article from CodeProject:

spoulson 2009-03-04 20:42:04

Plain C++ is much easier IMOHO. I don't think the OP is THAT much of a gluten for punishment!

Aardvark 2009-03-04 20:52:23

For all we know, he could be... the article shows the inside mechanics in brutal detail.

spoulson 2009-03-04 20:55:40

Does a gluten for punishment only bother people with wheat allergies? (Ahem. The word is "glutton.")

Rob Kennedy 2009-03-04 21:05:29

OP here - this series of articles looks to be exactly what I'm looking for!

2009-03-04 21:37:14

Anybody using nothing but notepad for development is a glutton for punishment.Heck, notepad doesn't even preserve file encodings properly!

Arafangion 2009-03-05 00:21:28

+6 A:

If you can get a hold on a copy of Inside COM, it should make you happy.

Serge - appTranslator 2009-03-04 20:44:09

This book uses straight C++, no ATL or MFC. Highly HIGHLY recommended. +1. I'm not sure what not using Visual Studio would buy you other than a lesson on cl/link/midl's command lines. I don't think you'll get much (COM specific understanding) out of that.

Aardvark 2009-03-04 20:56:35

Inside COM is, without a doubt, the BEST book to get to learn the basics of what COM really is. You'll need to read others - Essential COM and Inside OLE2, for example, to really get all the gory details, but you won't be able to learn COM from those books. Inside COM is the place to start. Then go buy ATL Internals 2nd Edition to see how to make coding COM in C++ somewhat tolerable. :-)

Chris Tavares 2010-10-13 06:18:56

+2 A:

I also recommend you to read Essential COM by Don Box after getting basic concepts of COM from Dale Rogerson's Inside COM.

Vinay 2009-03-05 00:17:29

+1 A:

If you can stand it, I would suggest Inside OLE2. It's a big, long tedious book that goes into quite a bit of detail of how COM works. I wound up reading this book several times, each time gaining a little deeper understanding.

Ferruccio 2009-03-05 01:59:48

+1 A:

This link help you :
OLE Automation.
Using Two Common 'Compression' Techniques - Huffman ATL/COM
Writing COM Clients with Late and Early Binding

lsalamon 2009-03-06 00:48:49

+1 A:

Another book to consider is Effective COM. It's not a beginners book but really really good.

FuleSnabel 2010-10-10 17:06:39

+1 A:

I found Apple's mDNSResponder implementation a helpful sample.

StackedCrooked 2010-10-13 06:11:27

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Writing a COM object totally from scratch?

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