keypress

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Overview Table

Synchronous	No
Bubbles	No
Target	dom/Element
Cancelable	No
Default action

Examples

View live exampleThis example shows how to retrieve information from the shiftKey'shiftKey' property of the event object. When the user simultaneously presses the shift key and types a character in the first text field, the value "true" appears in the second text field.

<head>
<script type="text/javascript">
function checkKey()
{
if (window.event.shiftKey)  // checks whether the SHIFT key 
						    // is pressed
   {
   txtOutput.value = "true"; // returns TRUE if SHIFT is pressed 
						     // when the event fires
   }
}
</script>
</head>
<body>
<p>Press the SHIFT key while pressing another key.<br>
    <input type="text" name="txtEnterValue" onkeypress="checkKey()"> </p>
<p>Indicates &quot;true&quot; if the shift key is used.<br>
    <input type="text" name="txtOutput"> </p>
</body>

Notes

Remarks

As of Microsoft Internet Explorer 4.0, the onkeypress event fires and can be canceled for the following keys:

Letters: A - Z (uppercase and lowercase)
Numerals: 0 - 9
Symbols: ! @ # $ % ^ & * ( ) _ - + = < [ ] { } , . / ? \ | ' ` " ~
System: ESC, SPACEBAR, ENTER

Returns a number specifying the Unicode value of the key that was pressed. To invoke this event, do one of the following:

Press any alphanumeric keyboard key.

Syntax

Standards information

HTML 4.01 Specification, Section 18.2.3

Event handler parameters

pEvtObj [in]: Type: IHTMLEventObj

a
abbr
acronym
address
applet
area
audio
b
bdo
big
blockQuote
body
button
canvas
caption
center
cite
code
custom
dd
del
dfn
dir
div
dl
document
dt
em
fieldSet
font
form
hn
hr
i
img
input type=button
input type=checkbox
input type=file
input type=image
input type=password
input type=radio
input type=reset
input type=submit
input type=text
kbd
label
legend
li
listing
map
marquee
menu
nextID
noBR
object
ol
p
plainText
pre
q
rt
ruby
s
samp
select
small
source
span
strike
strong
sub
sup
table
tBody
td
textArea
tFoot
th
tHead
tr
tt
u
ul
var
video
window
xmp
Reference
onchange
onkeydown
onkeyup

This article contains content originally from external sources.

Portions of this content come from the Microsoft Developer Network: [Windows Internet Explorer API reference Article]

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