Reference for unit 'keyboard': Constants

`AltPrefix`		Keycode for alternate prefix key for Alt key. Unix Only
`CtrlPrefix`		Keycode for alternate prefix key for Ctrl key. Unix only
`errKbdBase`		Base of keyboard routine error reporting constants.
`errKbdInitError`		Failed to initialize keyboard driver
`errKbdNotImplemented`		Keyboard driver not implemented.
`kbAlt`		Alt key modifier
`kbASCII`		ASCII code key event
`kbCtrl`		Control key modifier
`kbdApps`		Application key (popup-menu) pressed.
`kbdDelete`		Delete key pressed
`kbdDown`		Arrow down key pressed
`kbdEnd`		End key pressed
`kbdF1`		F1 function key pressed.
`kbdF10`		F10 function key pressed.
`kbdF11`		F12 function key pressed.
`kbdF12`		F12 function key pressed.
`kbdF13`		F13 function key pressed.
`kbdF14`		F14 function key pressed.
`kbdF15`		F15 function key pressed.
`kbdF16`		F16 function key pressed.
`kbdF17`		F17 function key pressed.
`kbdF18`		F18 function key pressed.
`kbdF19`		F19 function key pressed.
`kbdF2`		F2 function key pressed.
`kbdF20`		F20 function key pressed.
`kbdF3`		F3 function key pressed.
`kbdF4`		F4 function key pressed.
`kbdF5`		F5 function key pressed.
`kbdF6`		F6 function key pressed.
`kbdF7`		F7 function key pressed.
`kbdF8`		F8 function key pressed.
`kbdF9`		F9 function key pressed.
`kbdHome`		Home key pressed
`kbdInsert`		Insert key pressed
`kbdLeft`		Arrow left key pressed
`kbdLWin`		Left windows key pressed.
`kbdMiddle`		Middle key pad key pressed (numerical 5)
`kbdPgDn`		Page down key pressed
`kbdPgUp`		Page Up key pressed
`kbdRight`		Arrow right key pressed
`kbdRWin`		Right windows key pressed.
`kbdUp`		Arrow up key pressed
`kbFnKey`		function key pressed.
`kbLeftShift`		Left shift key modifier
`kbPhys`		Physical key code event
`kbReleased`		Key release event (not implemented in FPC)
`kbRightShift`		Right shift key modifier
`kbShift`		Shift key modifier
`kbUniCode`		Unicode code key event
`SAnd`		'And' description string
`ShiftPrefix`		Keycode for alternate prefix key for Shift key. Unix Only
`SKeyPad`		Names of keypad keys
`SLeftRight`		Names for left-right keys
`SScanCode`		Scancode key
`SShift`		Names of modifier keys
`SUnicodeChar`		Unicode character string.
`SUnknownFunctionKey`		Unknown function key