Most common controls belong to a window class defined in the common control DLL. The window class and the corresponding window procedure define the properties, appearance, and behavior of the control. To ensure that the common control DLL is loaded, include the InitCommonControls function in your application. You create a common control by specifying the name of the window class when calling the CreateWindowEx function or by specifying the appropriate class name in a dialog box template.
For more detailed information about common controls, see the following topics.