Menus, buttons, scroll bars. and check boxes are examples of controls that you operate with your mouse or keyboard. These controls allow you to select commands, change settings, or work with windows. This section describes hw to recognize and use controls that you'll encounter frequently while using Windows.
Using Menus
Most programs contain dozens or even hundreds of commands (actions) that you use to work the program. Many of these commands are organized under menus. Like a restaurant menu, a program menu shows you a list of choices. To keep the screen uncluttered, menus are hidden until you click their titles in the menu bar, located just underneath the title bar.
To choose one of the commands listed in a menu, click it. Sometimes a dialog box appears, in which you can select further options. If command is unavailable and cannot be clicked, it is shown in gray. Some menu items are not commands at all. Instead, they open other menus.
Using Scroll Bars
When a document, webpage, or picture exceeds the size of its windows, scroll bars appear to allow you to see the information that is currently out of view. The following picture shows the parts of a scroll bars.
Using Command Buttons
A command button performs a command (makes someting happen) when you click it. You'll most often ee them in dialog boxes, which are small windows that contain options for comleting a task. For example, if you close a Paint picture without saving it first, you mught see a dialog box like this.
Using List Boxes
A list box displays a list of options that you can choose rom. Unlike a drop-down list, some or all of the options are visible without having to open the list.
