EnumWnd v1.08 An ATL DLL to demonstrate COM Enumerators and Collections

Welcome to EnumWnd, a tutorial ATL COM dll which I developed while studying the Collections and Enumerator support provided by ATL. While reading the "ATL Internals" book by Brent Rector and Chris Sells, I was struggling with Chapter 7 which explains COM Enumerators. To improve my understanding of this, I decided to develop a real world example. The simplest collection I could think of was Top Level Windows which is what is returned by the Win32 SDK call "EnumWindows". 

The enclosed zip file contains the EnumWnd source code, and a sample VB 6 app to test all the methods of the classes.

Copyright

• You are allowed to include the source code in any product (commercial, shareware, freeware or otherwise) when your product is released in binary form.
• You are allowed to modify the source code in any way you want except you cannot modify the copyright details at the top of each module.
• If you want to distribute source code with your application, then you are only allowed to distribute versions released by the author. This is to maintain a single distribution point for the source code.

Updates

v1.08 (7 May 2022)

• Updated copyright details.
• Updated the code to use C++ uniform initialization for all variable declarations.

v1.07 (11 April 2020)

• Updated copyright details.
• Fixed more Clang-Tidy static code analysis warnings in the code.

v1.06 (30 December 2019)

• Fixed various Clang-Tidy static code analysis warnings in the code.

v1.05 (17 November 2019)

• Updated initialization of various structs to use C++ 11 list initialization

v1.04 (3 June 2019)

• Updated copyright details.
• Updated the code to clean compile on VC 2019

v1.03 (27 December 2018)

• Updated copyright details.
• Fixed a number of C++ core guidelines compiler warnings. These changes mean that the code will now only compile on VC 2017 or later.

v1.02 (17 January 2017)

• Updated copyright details.
• Updated the code to now require at a minimum VC 2010.
• Updated the code to clean compile in VC 2010 - 2015.
• Removed the MinSize project configurations.
• Updated the code to compile cleanly using /analyze
• Updated the code to include x64 build configurations
• Added SAL annotations to all the source code.
• Replaced NULL throughout the codebase with nullptr.
• The DLL now supports the "DllInstall" registration function.

v1.01 (6 April 2002)

• Fixed a problem with the registration of the class EnumWindow.
• Updated the sample app to use a Reference from the registry rather than from a location.
• Add the restricted IDL attribute to the _NewEnum methods to hide that method from scripting type library browsers.

v1.0 (20 January 2002)

• Initial public release.