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2018年1月27日

How to Validate COM Interface

Introduction

There is an IsValidInterface function in ole32.dll, but it is not being used now. A shape of a function is alive and may be used internally. In Windows, many programmers are using IsBadReadPtr to validate a pointer and it’s useful. Just like this, if you are programming with COM, there is a need for a validation method like COM’s version of IsBadReadPtr. However, [...]

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2018年1月27日

Creating a COM DLL with VS 2005: A Walkthrough

Download DLL – 14 KB Download library – 18.5 KB Introduction

This article demonstrates how to create a COM DLL in Visual Studio 2005 the easy way.

To learn how to register your COM DLLs, see my article “Registering COM DLL with VS 2005 Walk-Through“

Background

As the only developer for a printing company, I get the privilege of maintaining lots of [...]

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2018年1月27日

Number Speller COM-ponent

Download full source code, compiled DLL and CHM help – 78.57 KB  Download C++ sample – 43.03 KB Download Excel sample – 430.54 KB Download JS sample – 483 B

The original article: COM Number Speller.

Introduction

Some time ago, I needed to print numbers as text in Excel (Office 2003 as far as I remember). Searching the internet, I found a solution for [...]

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2018年1月27日

Reading and Writing Messages in Outlook Express

Download source files – 82.9 Kb Download demo project – 19.1 Kb

Table of contents Introduction Using this Code Points of Interest List local folders List messages of a folder Display the source of a message Create a message in a folder List body properties List attachments Get body content Set body content License History Introduction

The [...]

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2018年1月27日

The Simplest COM Tutorial in Visual Studio 2008

Download source – 28.65 KB

1. Introduction

I was new to COM/DCOM programming when I started learning this “old-fashioned” technology a month ago. I found it was very hard to find helpful tutorials on the Internet. I did find some tutorials out there, but I felt that they were not good resources to learn from because they were either “too old” [...]

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