Pressing the Alt and F4 keys together is a keyboard shortcut to close the currently active window. For example, if you press this keyboard shortcut while playing a game, the game window will close immediately.
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Learn More »This is one of those jokes people play on each other -- it's in the same category with squirting flowers and exploding cigars. This joke works on machines running the Windows operating system because Windows happens to define certain keystrokes that work the same way in all applications. Just about everyone knows that Alt+Ctrl+Del interrupts the operating system, but most people don't know that Alt+F4 closes the current window. So if you had pressed Alt+F4 while playing a game, the game window would have closed. It turns out there are several other handy keystrokes like that built into Windows. For example, Ctrl+Esc will pop up the Start menu, Alt+Esc will bring the next window to the foreground, and Alt+Tab or Alt+Shift+Tab will let you cycle through all available windows and jump to the one you select. On keyboards that have the little "Windows" key (let's call it WK here) down near the space bar, you probably know that you can press that key to open the Start menu. You can also use that key with other keys like you use the shift key. For example:
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Learn More »The F9 function key retrieves the last command(s) entered on the command line, in the reverse order that they were entered. Now, you can use the F8 function key to retrieve commands in the opposite direction.
You are in: IBM i Technology Updates > General IBM i Operating System > F8 - F9 Retrieve command enhancements The F9 function key retrieves the last command(s) entered on the command line, in the reverse order that they were entered. Now, you can use the F8 function key to retrieve commands in the opposite direction. In addition to providing this new F8 function on the Command Entry display, the F8 key will also do a reverse retrieve on any UIM panel with a command line where the F8 key is not already defined for some other function. New search capability has also been added to the F9 = Retrieve key. You can type part of a command string followed by an asterisk, and then press the F9 key to search for the last previous command entered that matches the string. The search is not case sensitive but leading blanks are significant when performing the search.
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