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introduction-to-atl-window-classes.md

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title Introduction to ATL Window Classes
ms.date 11/04/2016
helpviewer_keywords
window classes
ms.assetid 503efc2c-a269-495d-97cf-3fb300d52f3d

Introduction to ATL Window Classes

The following ATL classes are designed to implement and manipulate windows:

  • CWindow allows you to attach a window handle to the CWindow object. You then call CWindow methods to manipulate the window.

  • CWindowImpl allows you to implement a new window and process messages with a message map. You can create a window based on a new Windows class, superclass an existing class, or subclass an existing window.

  • CDialogImpl allows you to implement a modal or a modeless dialog box and process messages with a message map.

  • CContainedWindowT is a prebuilt class that implements a window whose message map is contained in another class. Using CContainedWindowT allows you to centralize message processing in one class.

  • CAxDialogImpl allows you to implement a dialog box (modal or modeless) that hosts ActiveX controls.

  • CSimpleDialog allows you to implement a modal dialog box with basic functionality.

  • CAxWindow allows you to implement a window that hosts an ActiveX control.

  • CAxWindow2T allows you to implement a window that hosts a licensed ActiveX control.

In addition to specific window classes, ATL provides several classes designed to make the implementation of an ATL window object easier. They are as follows:

See also

Window Classes