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NOTE: CentOS Enterprise Linux is built from the Red Hat Enterprise Linux source code. Other than logo and name changes CentOS Enterprise Linux is compatible with the equivalent Red Hat version. This document applies equally to both Red Hat and CentOS Enterprise Linux.

A.5. Using the Panel

The panel stretches across the bottom of the desktop. By default, it contains the Main Menu and quick-launch icons for starting a Web browser, email client, word processor, and other commonly used applications.

Figure A-7. The Panel

Applets are small applications that run on the panel. There are several types of applets: some perform functions such as system monitoring, time and date display, and others launch applications. Some applets run on the panel by default. This section covers them in detail.

A.5.1. The Pager

By default, KDE provides four desktops that you can use to display multiple applications without having to crowd all of them onto one desktop. Each desktop can hold icons, open applications, and be individually customized.

Figure A-8. The Pager

For example, while you are writing a message in Evolution on desktop one, you can have Mozilla browsing the Web on desktop two, the Writer word processor open on desktop three, and so on.

A.5.2. The Taskbar

The taskbar displays all running applications, both minimized and displayed, on all desktops.

Figure A-9. Applications on the Taskbar

You can maximize running applications or bring them to the front of your working windows by clicking on the associated item on the taskbar.

Tip Tip

Another way to bring minimized or background windows to the front is to use the [Alt] and [Tab] keys. To pick an item from the taskbar, hold down both the [Alt] -[Tab] key. To scroll through the tasks, hold down the [Alt] key, while tapping the [Tab] key. When you have found the task you want to maximize and bring to the front, release both keys and the application appears on the desktop.

The Taskbar is also configurable. Right-click on the handle — the small arrow that appears to the left of the taskbar — and select Configure Taskbar.

A.5.3. The Main Menu

The Main Menu is the central point for using KDE. Clicking on the Main Menu icon on the panel displays a large master menu from which you can perform tasks such as launch applications, find files, and configure your desktop. The main menu also contains several submenus that organize applications and tools into major categories, including Graphics, Internet, Office, Games, and more.

From the Main Menu, you can lock your session, which displays a password-protected screensaver. You can also run applications from a command line as well as logout of your KDE session.

A.5.4. Configuring the Panel

As with the other tools available with KDE, the panel is configurable. Right-click on the blank portio of the Panel and select Configure Panel. Configure the panel's orientation and size, or set the panel's hiding configuration.

Figure A-10. Panel Settings

A.5.5. Adding Applets to the Panel

To further customize the panel for your particular needs, you can include additional launcher icons to start applications without using the Main Menu. To add an application launcher to the panel, right-click on an unused portion the panel and choose Add. Then select Application Button and make your choice from the menus.

To add a new launcher to the panel, right-click the panel and choose Add => Application Button and choose the application or resource you wish to add to the panel. This automatically adds an icon on the panel. You can move the icon anywhere you want on the panel by right-clicking the icon and choosing Move Application Button, where Application is the name of the application associated with the icon.

  Published under the terms of the GNU General Public License Design by Interspire