Flash CS4 Professional ActionScript 2.0

Keyboard Keys and Key Code Values

The following tables list all the keys on a standard keyboard and the corresponding key code values and ASCII key code values that are used to identify the keys in ActionScript:

You can use key constants to intercept the built-in behavior of keypresses.

For more information on the on() handler, see on handler in the ActionScript 2.0 Language Reference. To capture key code values and ASCII key code values using a SWF file and key presses, draw a text field on the Stage. Select Input Text from the Text Type drop-down menu in the Properties panel, and click the Show border around text option. Then paste the following ActionScript code into the actions panel for the current Frame on the Timeline:

var keyListener:Object = new Object();

keyListener.onKeyDown = function() {
    trace("DOWN -> Code: " + Key.getCode() + "\tACSII: " + Key.getAscii() + "\tKey: " + chr(Key.getAscii()));
};
Key.addListener(keyListener);

For more information on the Key class, see Key in ActionScript 2.0 Language Reference. To trap keys when you test a SWF file in the authoring environment (Control > Test Movie), make sure that you select Control > Disable Keyboard Shortcuts.

Letters A to Z and standard numbers 0 to 9

The following table lists the keys on a standard keyboard for the letters A to Z and the numbers 0 to 9, with the corresponding key code values that are used to identify the keys in ActionScript:

Letter or number key

Key code

ASCII key code

A

65

65

B

66

66

C

67

67

D

68

68

E

69

69

F

70

70

G

71

71

H

72

72

I

73

73

J

74

74

K

75

75

L

76

76

M

77

77

N

78

78

O

79

79

P

80

80

Q

81

81

R

82

82

S

83

83

T

84

84

U

85

85

V

86

86

W

87

87

X

88

88

Y

89

89

Z

90

90

0

48

48

1

49

49

2

50

50

3

51

51

4

52

52

5

53

53

6

54

54

7

55

55

8

56

56

9

57

57

a

65

97

b

66

98

c

67

99

d

68

100

e

69

101

f

70

102

g

71

103

h

72

104

i

73

105

j

74

106

k

75

107

l

76

108

m

77

109

n

78

110

o

79

111

p

80

112

q

81

113

r

82

114

s

83

115

t

84

116

u

85

117

v

86

118

w

87

119

x

88

120

y

89

121

z

90

122

Keys on the numeric keypad

The following table lists the keys on a numeric keypad, with the corresponding key code values that are used to identify the keys in ActionScript:

Numeric keypad key

Key code

ASCII key code

Numpad 0

96

48

Numpad 1

97

49

Numpad 2

98

50

Numpad 3

99

51

Numpad 4

100

52

Numpad 5

101

53

Numpad 6

102

54

Numpad 7

103

55

Numpad 8

104

56

Numpad 9

105

57

Multiply

106

42

Add

107

43

Enter

13

13

Subtract

109

45

Decimal

110

46

Divide

111

47

Function keys

The following table lists the function keys on a standard keyboard, with the corresponding key code values that are used to identify the keys in ActionScript:

Function key

Key code

ASCII key code

F1

112

0

F2

113

0

F3

114

0

F4

115

0

F5

116

0

F6

117

0

F7

118

0

F8

119

0

F9

120

0

F10

This key is reserved by the system and cannot be used in ActionScript.

This key is reserved by the system and cannot be used in ActionScript.

F11

122

0

F12

123

0

F13

124

0

F14

125

0

F15

126

0

Other keys

The following table lists keys on a standard keyboard other than letters, numbers, numeric keypad keys, or function keys, with the corresponding key code values that are used to identify the keys in ActionScript:

Key

Key code

ASCII key code

Backspace

8

8

Tab

9

9

Enter

13

13

Shift

16

0

Control

17

0

Caps Lock

20

0

Esc

27

27

Spacebar

32

32

Page Up

33

0

Page Down

34

0

End

35

0

Home

36

0

Left Arrow

37

0

Up Arrow

38

0

Right Arrow

39

0

Down Arrow

40

0

Insert

45

0

Delete

46

127

Num Lock

144

0

ScrLk

145

0

Pause/Break

19

0

; :

186

59

= +

187

61

- _

189

45

/ ?

191

47

` ~

192

96

[ {

219

91

\ |

220

92

] }

221

93

" '

222

39

,

188

44

.

190

46

/

191

47

For additional key code and ASCII values, use the ActionScript at the beginning of this appendix and press the desired key to trace its key code.