The ATL Reference documents the Active Template Library (ATL), a set of template-based C++ classes that simplify the programming of Component Object Model (COM) objects. To fully take advantage of ATL, a working familiarity with COM is highly recommended.

ATL Class Overview
Provides links to and brief descriptions of the ATL classes organized by category.

ATL Classes
Provides reference material on the classes organized alphabetically.

ATL Functions
Provides reference material on the global functions organized alphabetically. Includes topics organizing the functions into categories.

ATL Global Variables
Provides reference material on the global variables organized alphabetically.

ATL Macros
Provides reference material on the macros organized alphabetically. Includes topics organizing the macros into categories.

ATL Structures
Provides reference material on the structures organized alphabetically.

ATL Typedefs
Provides reference material on the typedefs organized alphabetically

Archetypes
Provides links to the ATL archetypes, which are theoretical classes that supply a collection of methods, data members, static functions, typedefs, or other features, listed alphabetically.

Obsolete ATL Topics
Provides reference material on the classes, macros, and functions that are obsolete or deprecated.

ATL
Provides topics on how to program using the Active Template Library (ATL).

ATL Tutorial
Leads you through the creation of a control and demonstrates some ATL fundamentals in the process.

ATL Samples
Sample code that shows how to use ATL to write COM objects.

OLE DB Templates
Provides reference material for the OLE DB consumer and provider templates, a set of template classes that implement many commonly used OLE DB interfaces.

Visual C++ Libraries
Provides links to the various libraries provided with Visual C++, including ATL, MFC, OLE DB Templates, the C run-time library, and the C++ Standard Library.