Running Linux, 5th Edition - Matthias Kalle Dalheimer [54]
The KDE panel and the K menu
When you start KDE for the first time, it looks like Figure 3-1. Along the lower border of the screen, you see the so-called panel. The panel serves several purposes, including fast access to installed applications and the currently opened windows. KDE also opens a configuration program that lets you configure the initial settings when started for the first time.
KDE provides a number of workspaces that are accessible via the buttons in the middle of the panel, labeled One to Eight by default. Try clicking those buttons. You can see that windows that you have opened are visible only while you are in workspace One, whereas the panel and the taskbar are always visible. Now go to workspace Two and start a terminal window by clicking the terminal icon on the panel. When the panel appears, change workspaces again. You will see that the terminal window is visible only while you are in workspace Two, but its label is visible on the taskbar that appears in all workspaces. When you are in any other workspace, click the terminal label in the taskbar. This will immediately bring you back to the workspace where your terminal is shown.
Figure 3-1. The KDE desktop at startup
To try another nifty feature, push the small button that looks like a pushpin in the titlebar of the terminal window. Now change workspaces again. You will see that the terminal window is now visible on every workspace—it has been "pinned down" to the background of the desktop, so to speak.
If you grow tired of seeing the terminal window in every workspace, simply click the pin again. If you want to get rid of the window as a whole, click the button with the little x on it in the upper-right corner.
KDE can be configured in many different ways, and the window decorations are just one thing. It might therefore be that you do not have the little pushpin button, because your configuration does not include it. In that case, you can left-click on the application in the left corner of the title frame and select To Desktop → All Desktops instead.
There are lots of things that you can do with windows in KDE, but we'll switch now to a short exploration of the so-called K menu . You open the K menu by clicking the icon with the gear-and-K symbol to the far left of the panel. Besides some options for configuring the K menu and the panel itself, you will find all installed KDE applications here, grouped into submenus. To start one of those applications, select the menu entry.
We have promised that you can run old X applications on your KDE desktop. You can do that either by opening a terminal window and typing the application name on the command line or by pressing Alt-F2 and entering the application name in the small command line that appears in the middle of the screen. But, with a little more work, you can also integrate non-KDE applications into the K menu and the panel, which then displays icons that you can click to run the associated programs.
Depending on how you have installed KDE, it may well be that there is already a submenu of non-KDE programs in your K menu that contains a number of non-KDE applications. If you don't have this, run the application KAppfinder, which you can either find in the System submenu or start from the command line with kappfinder. This searches your system for a number of applications that it has in its database and integrates each one into the KDE desktop by generating a so-called .desktop file for it. If the program that you want to integrate into KDE is not included in the Appfinder's database, you will have to write such a .desktop file yourself. But as always in KDE, there are dialogs for doing this where you just have to fill in the required information. See the KDE documentation at http://www.kde.org/documentation/index.html.
By default, the panel already contains a number of icons to start the most often used programs, but you can easily add your own. To do this, right-click