UNDERSTANDING DIALOGS
Of course, dialogs are not new to you. Most Windows programs of consequence use dialogs to manage some of their data input. You click a menu item and up pops a dialog with various controls that you use for entering information. Just about everything that appears in a dialog is a control. A dialog is actually a window and each control in a dialog is also a specialized window. Come to think of it, an application window under Microsoft Windows is composed almost entirely of windows within windows.
You need two things to create and display a dialog in an MFC program: the physical appearance of the dialog, which you define as a resource, and a dialog class object that you use to manage the operation of the dialog and its controls. MFC provides the CDialog and CDialogEx classes for you to use once you have defined your dialog resource.
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