A window that has focus can receive input from the mouse and the keyboard. Only one window can have focus at a time. The window that has focus has a different appearance than other windows.
You can use the following elements to give focus to a window:
| Element | Action | 
|---|---|
| Mouse | Click on the window, if the window is visible. | 
| Shortcut keys | Use shortcut keys to switch between the windows that are open. To give focus to a window, release the keys. The default shortcut keys to switch between windows are Alt + Tab. | 
| 
 | Click on the button that represents the window in  | 
| 
 | Click on the window that you want to give focus to in the  |