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Option key

From Wikipedia, the free encyclopedia
Modifier key present on Apple keyboards
Option key
In UnicodeU+2325 OPTION KEY
The Option key may be labeledAlt,Option, ⌥, or any combination thereof.

TheOption key,, is amodifier key present onApple keyboards. It is located between theControl key and theCommand key on a typical Mac keyboard. There are two Option keys on modern (as of 2020) Mac desktop and notebook keyboards, one on each side of the space bar. (As of 2005, some laptops had only one, in order to make room for thearrow keys.)

Apple commonly uses the symbolU+2325 OPTION KEY[1] to represent the Option key. From 1980 to 1984, on theApple II, this key was known as theclosed apple key or thesolid apple key,[2] and had a black line drawing of a filled-inapple on it.

Since the 1990s, "Alt" has sometimes appeared on the key as well, for use as anAlt key with non-Mac software, such as Unix and Windows programs; as of 2017, the newest Apple keyboards such as theMagic Keyboard no longer include the "Alt" label. The Option key in a Mac operating system functions differently from the Alt key under otherUnix-like systems orMicrosoft Windows. It is not used to access menus or hotkeys but is instead used as a modifier for other command codes, as well as to provide easier access to variousaccents and symbols. In this regard, it is akin to theAltGr key, found on some IBM-compatible PC keyboards.

Uses

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Alternative keyboard input

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The use of the Option key is similar to that of theAltGr key on European keyboards of IBM-compatible PCs, in the sense that it can be used to type additionalcharacters,symbols anddiacritical marks. The options available differ depending on the keyboard input locale that the user has selected. For example, in the U.S. English keyboard input,⌥ Option+a produces the "å" character, and⌥ Option+4 produces thecent sign "¢".

The Option key can also provide access todead key functionality. For example, holding down⌥ Option while pressing` will create a highlightedgrave accent which will be added to the next letter if possible – so if ane is then pressed, the resultant character isè. If anr is pressed instead, the two characters are not compatible so the result is`r.

The highlighted orange keys show the accents available from the combination of the⌥ Option key and the keyboard characterse`inu. The accent then can be applied to associated letters both lower and uppercase. The additional characters a Mac will produce are a combination of both the⌥ Option key and the⇧ Shift key pressed down together. With this combination pressed the keyboard will now produce a different set or an uppercase version of the previous set in some cases.

Notice that holding the shift key as well as the option key while pressing a letter key may create "capital" versions of what results when the same letter key is pressed while the option key but not the shift key is held. For example:

  • ⌥ Option+a results in å.⌥ Option+⇧ Shift+a results in Å.
  • ⌥ Option+c results in ç.⌥ Option+⇧ Shift+c results in Ç.
  • ⌥ Option+o results in ø.⌥ Option+⇧ Shift+o results in Ø.
  • ⌥ Option+' results in æ.⌥ Option+⇧ Shift+' results in Æ.

The Option key is often used in conjunction with special keys likeTab ↹,delete, andreturn to provide alternate functions. For example,⌥ Option+Return typically produces aline break that is not interpreted as aparagraph break.[citation needed]

Alternative buttons and menu items

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The key is also used to provide for alternative menu items and buttons when pressed down. Examples:

  • Safari,Finder – the Option key causes the "Close Window" menu item to switch to "Close All Windows" when pressed down. Consequently, clicking a window's close box with the option key depressed invokes "close all" as well. This functionality is a de facto Macintosh standard and available in numerous other programs.
  • Dock – the Option key causes the "Hide" and "Quit" menu items in thecontext menu of a Dock icon to switch to "Hide Others" and "Force Quit".
  • iTunes – theCreate Playlist button switches to aCreate Smart Playlist button. Holding Option and clicking the green Window Zoom (+) button at the top-left forces the iTunes window into fullscreen view, rather than switching between the user-set window size and the iTunes Mini Player.
  • iPhoto – the rotate image button toggles between a "rotate right" and a "rotate left".
  • Menu bar items – the Sound icon will show Audio Device input / output settings instead of the volume control slider, the battery item will show the condition of the battery, theMobileMe sync item will show the last sync date/time of individual synced items and will offer additional menu items such as Sync Diagnostics, and the Wireless icon will show extended wireless network information and, inMac OS X Lion, offer an item for launching a Wi-Fi diagnostic application (when AirPort is connected).

The iPhoto example is an example of a control whose behavior is governed by a preference, which is temporarily inverted by holding down the Option key. The preference in this case is which way to rotate the image: If the user changes the default rotation direction in the Preferences to clockwise, holding down Option will make the button rotate counterclockwise instead, and vice versa. It is common for such controls — that is, those whose behavior is governed by a preference — to be invertible in this way

Common keyboard navigations

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Intext areas, the Option key can be used for quick keyboard navigation.

  • ⌥ Option+/ – navigate to the previous/next word.
    • Windows equivalent:Ctrl+/
  • ⌥ Option+/ – navigate to the head/end of current paragraph.
    • Terminal equivalent:⇧ Shift+Home/End
    • Windows equivalent: Home/End
  • ⌥ Option+Page up/Page down – navigatecaret up/down a page. Without the Option key, thePage up/Page down keys let the page view scroll up/down a page without moving the caret.
    • Windows equivalent:Page up/Page down

Alternative mouse actions

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When keeping the Option key pressed when using the mouse, the mouse action can change behaviour

  • option-mouse clicking an application other than the current one, automaticallyhides the current application and switches to the clicked application.
  • When dragging an item (file in the Finder, or layer inAdobe Photoshop, for instance), keeping Option pressed willDuplicate it instead of moving it.

File downloads

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In browsers such as Safari andSeaMonkey, the option key can be used to download a file. Pressing down the option key when hitting return in the address bar causes the URL-specified file to be downloaded. Also, pressing the option key when clicking ahyperlink causes the link target to be downloaded. Besides the option key methods, other ways of downloading includes right-clicking (or ctrl (^) clicking, in Macs) a hyperlink to bring up acontext menu, then selecting the appropriate download command, or pasting a URL directly into Safari's Downloads window.

Miscellaneous

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Some applications make unique uses out of the option key:

  • Terminal (including at least version 1.4.6 – no longer true as of 2.0.1,⌘ Cmd+/ works.) –⌥ Option+/ arrows navigates between open Terminal windows in a loop. Usually, programs use⌘ Cmd+` and⌘ Cmd+⇧ Shift+`, which are also supported for Terminal.
  • Scroll bars (including at least OS X 10.3.x) – Option-clicking a scroll bar arrow can cause the view to jump to the next page instead of moving by a few lines. Option-clicking in the scroll bar can cause the view to jump to that position instead of jumping to the next page. This behavior can be reversed in System Preferences: Appearance.
  • Startup Disk – Holding the Option Key at boot time activates a boot manager built into the firmware, where the user may choose from which drive/partition to boot the computer from, includingMac OS andMac OS X partitions or drives onPowerPC-based Macs, andMac OS X andMicrosoft Windows partitions or drives onIntel-based Macs (runningMac OS X 10.4.6 and later withBoot Camp fromApple Inc. installed). This has been replaced by a general boot menu, activated by holding the power button onApple Silicon-based Macs. The built-in bootloader can also boot other operating systems such asLinux; however, these are labeled as "Windows" in the bootloader.

References

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  1. ^Unicode Character "OPTION KEY" at Fileformat.info
  2. ^Arrants, Stephen (October 1983)."Apple Writer II".Creative Computing. p. 101. Retrieved2024-07-18 – via atarimagazines.com.An arrow key used with the Solid-Apple key moves the cursor by word or 12 lines up or down.
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