### Keyboard Codes

The table below shows the IUP codification of common keys in a keyboard. Each key is represented by an integer value, defined in the "iupkey.h" file header, which should be included in the application to use the key definitions. These keys are used in K_ANY and KEYPRESS_CB callbacks to inform the key that was pressed in the keyboard.

From the definition in the table, change the prefix to K_s*, K_c*, K_m* and K_y* to add the respective modifier (Shift, Control, Alt and Sys). Sys in Windows is the Windows key and in Mac is the Apple key. Check the "iupkey.h" file header for all the definitions.

IUP provides definitions only for common control keys and ASCii characters. Other key combinations are accessed using the macros described bellow. Also the global attribute "MODKEYSTATE" can be used to detect the combination of two or more modifiers. Notice that some key combinations are never available because they are restricted by the system. Notice that all of this does not affect the IupText and IupMultiline text input.

The iup_isprint(key) macro informs if a key can be directly used as a printable character. The iup_isXkey(key) macro informs if a given key is an extended code. The iup_isShiftXkey(key) macro informs if a given key is an extended code using the Shift modifier, the iup_isCtrlXkey(key) macro for the Ctrl modifier, the iup_isAltXkey(key) macro for the Alt modifier, and the iup_isSysXkey(key) macro for the Sys modifier. To obtain a key code for a generic combination you can start with the base key from the table and combine it repeated times using the macros iup_XkeyShift(key), iup_XkeyCtrl(key), iup_XkeyAlt(key) and iup_XkeySys(key).

These macros are also available in Lua as a function with the same name (iup.isprint(key), iup.isXkey(key), and so on) and returning a boolean.

Note: GTK in Windows does not generates the Win modifier key, the K_Print and the K_Pause keys (up to GTK version 2.8.18).

Key | Code / Callback
--- | ---
Space | K_SP
! | K_exclam
" | K_quotedbl
# | K_numbersign
$ | K_dollar
% | K_percent
& | K_ampersand
' | K_apostrophe
( | K_parentleft
) | K_parentright
* | K_asterisk
+ | K_plus
, | K_comma
- | K_minus
. | K_period
/ | K_slash
0 | K_0
1 | K_1
2 | K_2
3 | K_3
4 | K_4
5 | K_5
6 | K_6
7 | K_7
8 | K_8
9 | K_9
: | K_colon
; | K_semicolon
< | K_less
= | K_equal
> | K_greater
? | K_question
@ | K_at
A | K_A
B | K_B
C | K_C
D | K_D
E | K_E
F | K_F
G | K_G
H | K_H
I | K_I
J | K_J
K | K_K
L | K_L
M | K_M
N | K_N
O | K_O
P | K_P
Q | K_Q
R | K_R
S | K_S
T | K_T
U | K_U
V | K_V
W | K_W
X | K_X
Y | K_Y
Z | K_Z
[ | K_bracketleft
\ | K_backslash
] | K_bracketright
^ | K_circum
_ | K_underscore
` | K_grave
a | K_a
b | K_b
c | K_c
d | K_d
e | K_e
f | K_f
g | K_g
h | K_h
i | K_i
j | K_j
k | K_k
l | K_l
m | K_m
n | K_n
o | K_o
p | K_p
q | K_q
r | K_r
s | K_s
t | K_t
u | K_u
v | K_v
w | K_w
x | K_x
y | K_y
z | K_z
{ | K_braceleft
| | K_bar
} | K_braceright
~ | K_tilde
Esc | K_ESC
Enter | K_CR
BackSpace | K_BS
Insert | K_INS
Del | K_DEL
Tab | K_TAB
Home | K_HOME
Up Arrow | K_UP
PgUp | K_PGUP
Left Arrow | K_LEFT
Middle | K_MIDDLE
Right Arrow | K_RIGHT
End | K_END
Down Arrow | K_DOWN
PgDn | K_PGDN
Pause | K_PAUSE
Print Screen | K_Print
Context Menu | K_Menu
´ | K_acute
ç | K_ccedilla
¨ | K_diaeresis
F1 | K_F1
F2 | K_F2
F3 | K_F3
F4 | K_F4
F5 | K_F5
F6 | K_F6
F7 | K_F7
F8 | K_F8
F9 | K_F9
F10 | K_F10
F11 | K_F11
F12 | K_F12
Left Shift | K_LSHIFT
Right Shift | K_RSHIFT
Left Ctrl | K_LCTRL
Right Ctrl | K_RCTRL
Left Alt | K_LALT
Right Alt | K_RALT
Scroll Lock | K_SCROLL
Num Lock | K_NUM
Caps Lock | K_CAPS