The message box displays the message that describes the error condition and how to resolve it. In the following example, the application displays a message box that prompts the user for an action after an error condition has occurred. After the user closes the message box, MessageBox or MessageBo圎x returns a value identifying the button chosen by the user to close the message box. The system creates a modal dialog box, providing its own dialog box template and procedure.

You create a message box by using the MessageBox or MessageBo圎x function, specifying the message and the number and type of buttons to display. Most applications use message boxes to warn the user of errors and to prompt for directions on how to proceed after an error has occurred. The simplest form of modal dialog box is the message box. The following sections discuss how to use both types of dialog boxes. It is similar to a main window containing controls. A modeless dialog box does not require an immediate response from the user. However, the user can activate windows in different applications. A modal dialog box requires the user to close the dialog box before activating another window in the application. The process for handling dialog boxes varies, depending on whether the dialog box is modal or modeless. Your application loads and initializes the dialog box, processes user input, and destroys the dialog box when the user finishes the task. You use dialog boxes to display information and prompt for input from the user.

Define dialog box launcher