Other than 5, all other numeric keys from the numeric keypad are used to move the pointer on the screen. Within the X Window System core protocol, permutation can be applied by xmodmap(1). 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 Mac OS X is enabled and configured via the Accessibility ( → System Preferences → Accessibility → Mouse & Trackpad). 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 temporary enable mouse keys under Xorg: This is independent of the Window Manager in use and may be overridden by a configuration file. MouseKeys without acceleration (also known as plot mode) is sometimes available with Shift+NumLock. Under the X Window Systems Xorg and XFree86 used on Unix-like systems such as Linux, BSD, and AIX, MouseKeys (and MouseKeysAccel) is nominally (de)activated by Alt+ Left 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 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 X window system MouseKeysAccel trajectory parameter
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