Not assigned (never returned as the result of a keystroke)

The backspace key

The forward delete key

The tab key

The Clear key

Return key

Pause on PC machines

Escape key

Space key

Numeric keypad 0

Numeric keypad 1

Numeric keypad 2

Numeric keypad 3

Numeric keypad 4

Numeric keypad 5

Numeric keypad 6

Numeric keypad 7

Numeric keypad 8

Numeric keypad 9

Numeric keypad '.'

Numeric keypad '/'

Numeric keypad '*'

Numeric keypad '-'

Numeric keypad '+'

Numeric keypad enter

Numeric keypad '='

Up arrow key

Down arrow key

Right arrow key

Left arrow key

Insert key key

Home key

End key

Page up

Page down

F1 function key

F2 function key

F3 function key

F4 function key

F5 function key

F6 function key

F7 function key

F8 function key

F9 function key

F10 function key

F11 function key

F12 function key

F13 function key

F14 function key

F15 function key

The '0' key on the top of the alphanumeric keyboard.

The '1' key on the top of the alphanumeric keyboard.

The '2' key on the top of the alphanumeric keyboard.

The '3' key on the top of the alphanumeric keyboard.

The '4' key on the top of the alphanumeric keyboard.

The '5' key on the top of the alphanumeric keyboard.

The '6' key on the top of the alphanumeric keyboard.

The '7' key on the top of the alphanumeric keyboard.

The '8' key on the top of the alphanumeric keyboard.

The '9' key on the top of the alphanumeric keyboard.

Exclamation mark key '!'

Double quote key '"'

Hash key '#'

Dollar sign key '$'

Ampersand key '&'

Quote key '

Left Parenthesis key '('

Right Parenthesis key ')'

Asterisk key '*'

Plus key '+'

Comma ',' key

Minus '-' key

Period '.' key

Slash '/' key

Colon ':' key

Semicolon ';' key

Less than '<' key

Equals '=' key

Greater than '>' key

Question mark '?' key

At key '@'

Left square bracket key '['

Backslash key '\'

Right square bracket key ']'

Caret key '^'

Underscore '_' key

Back quote key '`'

'a' key

'b' key

'c' key

'd' key

'e' key

'f' key

'g' key

'h' key

'i' key

'j' key

'k' key

'l' key

'm' key

'n' key

'o' key

'p' key

'q' key

'r' key

's' key

't' key

'u' key

'v' key

'w' key

'x' key

'y' key

'z' key

Numlock key

Capslock key

Scroll lock key

Right shift key

Left shift key

Right Control key

Left Control key

Right Alt key

Left Alt key

Left Apple key

Left Windows key

Right Apple key

Right Windows key

Alt Gr key

Help key

Print key

Sys Req key

Break key

Menu key

First (primary) mouse button

Second (secondary) mouse button

Third mouse button

Fourth mouse button

Fifth mouse button

Sixth mouse button

Seventh mouse button

Button 0 on any joystick

Button 1 on any joystick

Button 2 on any joystick

Button 3 on any joystick

Button 4 on any joystick

Button 5 on any joystick

Button 6 on any joystick

Button 7 on any joystick

Button 8 on any joystick

Button 9 on any joystick

Button 10 on any joystick

Button 11 on any joystick

Button 12 on any joystick

Button 13 on any joystick

Button 14 on any joystick

Button 15 on any joystick

Button 16 on any joystick

Button 17 on any joystick

Button 18 on any joystick

Button 19 on any joystick

Button 0 on first joystick

Button 1 on first joystick

Button 2 on first joystick

Button 3 on first joystick

Button 4 on first joystick

Button 5 on first joystick

Button 6 on first joystick

Button 7 on first joystick

Button 8 on first joystick

Button 9 on first joystick

Button 10 on first joystick

Button 11 on first joystick

Button 12 on first joystick

Button 13 on first joystick

Button 14 on first joystick

Button 15 on first joystick

Button 16 on first joystick

Button 17 on first joystick

Button 18 on first joystick

Button 19 on first joystick

Button 0 on second joystick

Button 1 on second joystick

Button 2 on second joystick

Button 3 on second joystick

Button 4 on second joystick

Button 5 on second joystick

Button 6 on second joystick

Button 7 on second joystick

Button 8 on second joystick

Button 9 on second joystick

Button 10 on second joystick

Button 11 on second joystick

Button 12 on second joystick

Button 13 on second joystick

Button 14 on second joystick

Button 15 on second joystick

Button 16 on second joystick

Button 17 on second joystick

Button 18 on second joystick

Button 19 on second joystick

Button 0 on third joystick

Button 1 on third joystick

Button 2 on third joystick

Button 3 on third joystick

Button 4 on third joystick

Button 5 on third joystick

Button 6 on third joystick

Button 7 on third joystick

Button 8 on third joystick

Button 9 on third joystick

Button 10 on third joystick

Button 11 on third joystick

Button 12 on third joystick

Button 13 on third joystick

Button 14 on third joystick

Button 15 on third joystick

Button 16 on third joystick

Button 17 on third joystick

Button 18 on third joystick

Button 19 on third joystick

Button 0 on forth joystick

Button 1 on forth joystick

Button 2 on forth joystick

Button 3 on forth joystick

Button 4 on forth joystick

Button 5 on forth joystick

Button 6 on forth joystick

Button 7 on forth joystick

Button 8 on forth joystick

Button 9 on forth joystick

Button 10 on forth joystick

Button 11 on forth joystick

Button 12 on forth joystick

Button 13 on forth joystick

Button 14 on forth joystick

Button 15 on forth joystick

Button 16 on forth joystick

Button 17 on forth joystick

Button 18 on forth joystick

Button 19 on forth joystick