Key value for letters and numbers)
Key code key code
A 65 J 74 s 83 1 49
B 66 K 75 t 84 2 50
C 67 L 76 U 85 3 51
D 68 M 77 V 86 4 52
E 69 n 78 W 87 5 53
F 70 o 79x88 6 54
G 71 P 80 y 89 7 55
H 72 Q 81 Z 90 8 56
I 73 R 82 0 48 9 57
Keycode function keycode)Key code key code0 96 8 104 F1 112 F7 1181 97 9 105 F2 113 F8 1192 98*106 F3 114 F9 1203 99 + 107 F4 115 F10 1214 100 enter 108 F5 116 F11 1225 101
1. Key Value of the letter and number key (keyCode)
Buttons
Key code
A
65
B
66
C
67
D
68
E
69
F
70
G
71
H
72
I
73
J
74
K
75
L
76
M
77
N
78
O
79
P
80
Q
81
R
82
S
83
T
84
U
85
V
86
Mtk hardware startup to disable Bluetooth: mtk hardware ScanCode and keycode application example, mtkscancode
Project requirements: Because android5.0 is not used in this project, a third-party module is required to enable bluetooth audio slave. The third-party module is controlled through GPIO on the android motherboard. The UI enables or disables the Bluetooth search function by selecting a graph or pressing a kpd combination.
1. User button Detecti
Key value for letters and numbers)
Buttons
Key code
Buttons
Key code
Buttons
Key code
Buttons
Key code
A
65
J
74
S
83
1
49
B
66
K
75
T
84
2
50
C
67
L
76
U
85
3
51
D
68
M
77
V
86
4
52
E
69
N
78
W
87
5
53
F
70
O
79
X
88
6
triggering an event when a key is clickedDocument.onkeydown = function (e) {e = e | | event; if (E.KeyCode= = 13) {//Determine whether to click the Enter key (enter)Document.getelementbyidx_x_x ("txtID"). Click ();return false; }}Explanation: The value of KeyCode indicates the key of the corresponding keyboardKeyCode 8 = BackSpace BackSpaceKeyCode 9 = Tab tabKeyCode = ClearKeyCode = EnterKeyCode = shift_lKe
Event. keyCode value table in Javascript
Key value for letters and numbers)
Buttons
Key code
Buttons
Key code
Buttons
Key code
Buttons
Key code
A
65
J
74
S
83
1
49
B
66
K
75
T
84
2
50
C
Tags: cat esc das Start key combination Flex write lock ROP intADB command analog key input KeyCodeMay 18, 2017 14:57:32Hits: 1883Example:This command is equivalent to pressing the Backkey key of the device.ADB shell Input KeyEvent 4You can unlock the screenADB shell Input KeyEvent 82Screen operation, the first four numbers are coordinate points, followed by the sliding time (in milliseconds)ADB shell input Swipe 50 250 250 250 500Click the position of the coordinate point x=50 y=250 on the scre
Today, when I went to modify an old system, I solved the compatibility problem that a button triggers on different browsers. It's easy to get away with some information, so don't know why.
First, we will introduce a few simple
Keydown event:
When the browser reads this statement, the keydown () function is called no matter which key is pressed on the keyboard.
Function keydown () {} document. onkeydown = keydown;
Read keyboard buttons Under IE
Ke
Keycode Value
Actual Meaning
48 to 57
0 to 9
65 to 90
A to Z (A to Z)
From 112 to 135
F1 to f24
8
Backspace)
9
Tab
13
Enter (Press ENTER)
20
Caps_lock (Capital lock)
32
Space (space key)
37
Left (left arrow)
38
Test Results:
Under IE:
>> Support KeyCode
>> does not support which and charcode, the values are undefined
Under Firefox:
>> supports keycode, except function keys, the other key values are always 0
>> supports which and charcode, the values are the same
Under Opera:
>> supports KeyCode and which, the values are the same
>> does not support charcode, value is
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