Check if Alt key is pressed during the event in JavaScript
Description
The following code shows how to check if Alt key is pressed during the event.
Example
<html>
<head>
<script type="text/javascript">
function handleEvent(oEvent) {<!--from ww w . j a v a 2 s . c om-->
var oTextbox = document.getElementById("txt1");
oTextbox.value += "\n>" + oEvent.type;
oTextbox.value += "\n target is "
+ (oEvent.target || oEvent.srcElement).id;
oTextbox.value += "\n charCode is " + oEvent.charCode;
var arrKeys = [];
if (oEvent.altKey) {
arrKeys.push("Alt");
}
oTextbox.value += "\n keys down are " + arrKeys;
}
</script>
</head>
<body>
<P>Type some characters into the first textbox.</p>
<P>
<textarea id="txtInput" rows="15" cols="50"
onkeypress="handleEvent(event)"></textarea>
</p>
<P>
<textarea id="txt1" rows="15" cols="50"></textarea>
</p>
</body>
</html>