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Key sequence steermouse11/6/2023 Within the X Window System core protocol, permutation can be applied by xmodmap. Many window managers have a setting that permutes the assignment. Many laptop bioses have a setting for mouse button assignment. Some mice have a switch, that swaps assignment of right and left keys. The selection remains in effect until a different button is selected.Īssignment of left/middle/right button to primary/modifier/alternate, alternate/modifier/primary, or something else is settable by many means. Typing / (with the numeric keypad) selects the primary button. Typing * (with the numeric keypad) selects the modifier button (nominally under the middle finger, middle button of a 3-button mouse). Typing - (with the numeric keypad) selects the alternate button (nominally under ring finger, right button for most right-handed people and left button for most left-handed people). By default, the selected button is the primary button (nominally under index finger, left button for most right-handed people and right button for most left-handed people). Typing 5 (with the numeric keypad) is equivalent to clicking the selected button. Replacing the mouse keys by the numeric keypad is as follows: Microsoft changed the method of enabling between Windows 2000, Windows XP (added diagonal cursor movement and MouseKeysAccel), and Windows Vista. MouseKeys for Apple Inc.'s macOS is enabled and configured via the Accessibility ( → System Preferences → Accessibility → Mouse & Trackpad). Since KDE 5, MouseKeys is enabled and configured by systemsetting5 (Hardware → Input Devices → Mouse → Keyboard Navigation) There are also various utilities to allow more precise control via user-configurable key bindings, such as xmousekeys and xdotool. The setxkbmap utility can be used to change the configuration under Xorg: This is nominally independent of the window manager in use, but may be overridden, or even made unavailable by a configuration file.īefore enabling, it may be necessary to change system configuration. MouseKeys without acceleration (also known as plot mode) is sometimes available with ⇧ Shift+ Num Lock. Under the X Window Systems X.Org and XFree86 used on Unix-like systems such as Linux, BSD, and AIX, MouseKeys (and MouseKeysAccel), when available, is nominally (de)activated by Alt+ ⇧ Shift+ Num Lock. Uniform jerk, linearly increasing acceleration Uniform acceleration, linearly increasing speed Uniform speed, linearly increasing action The X Window System MouseKeysAccel control applies action (usually cursor movement) repeatedly while a direction key mk_curve Number of events (count) accelerating to steady speed Steady speed (in action_delta units) applied each event Milliseconds between repeated motion events Milliseconds between the initial key press and first repeated motion event MouseKeysAccel X window system MouseKeysAccel trajectory parameter Easy access was (de)activated by clicking the shift key 5 times.īy the early 2020s, with graphics tablets becoming more common, a configuration change may be required before enabling MouseKeys. In 1987, Macintosh Operating System 4.2 Easy Access, provided MouseKeys support to all applications. environmental limits (e.g., vibration in car or plane).precision requirements (e.g., technical drawing).Such situations may arise from the following: As pointing devices became ubiquitous, the use of mouse keys narrowed to situations where a pointing device was missing, unusable, or inconvenient. Historically, MouseKeys supported GUI programs when many terminals had no dedicated pointing device. Layout X window system MouseKeys default numpad layout key Today, mouse keys usually refers to the numeric keypad layout standardized with the introduction of the X Window System in 1984. Its roots lie in the earliest days of visual editors when line and column navigation was controlled with arrow keys. Mouse keys is a feature of some graphical user interfaces that uses the keyboard (especially numeric keypad) as a pointing device (usually replacing a mouse).
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