Sys.UI.DomEvent altKey Field
Gets a Boolean value that indicates the state of the ALT key when the associated event occurred.
var altKey = domElementVar.altKey;
Return Value
true if the ALT key was pressed when the event occurred; otherwise, false.
Remarks
Use the altKey field to determine whether the ALT key is pressed when the event occurred.
Example
The following example shows how to use the altKey field to test the state of the ALT key when the associated event occurred.
<script type="text/javascript">
Sys.UI.DomEvent.addHandler($get("Button1"), "click", processEventInfo);
function processEventInfo(eventElement) {
var result = '';
try {
result += "altKey = " + eventElement.altKey + "<br/>";
result += "button = " + eventElement.button + "<br/>";
result += "keyCode = " + eventElement.keyCode + "<br/>";
result += "clientX = " + eventElement.clientX + "<br/>";
result += "clientY = " + eventElement.clientY + "<br/>";
result += "ctrlKey = " + eventElement.ctrlKey + "<br/>";
result += "offsetX = " + eventElement.offsetX + "<br/>";
result += "offsetY = " + eventElement.offsetY + "<br/>";
result += "screenX = " + eventElement.screenX + "<br/>";
result += "screenY = " + eventElement.screenY + "<br/>";
result += "shiftKey = " + eventElement.shiftKey + "<br/>";
result += "target.id = " + eventElement.target.id + "<br/>";
result += "type = " + eventElement.type + "<br/>";
}
catch(e) {
alert("Error:" + e.message);
}
$get('Label2').innerHTML = result;
}
</script>
<script type="text/javascript">
Sys.UI.DomEvent.addHandler($get("Button1"), "click", processEventInfo);
function processEventInfo(eventElement) {
var result = '';
try {
result += "altKey = " + eventElement.altKey + "<br/>";
result += "button = " + eventElement.button + "<br/>";
result += "keyCode = " + eventElement.keyCode + "<br/>";
result += "clientX = " + eventElement.clientX + "<br/>";
result += "clientY = " + eventElement.clientY + "<br/>";
result += "ctrlKey = " + eventElement.ctrlKey + "<br/>";
result += "offsetX = " + eventElement.offsetX + "<br/>";
result += "offsetY = " + eventElement.offsetY + "<br/>";
result += "screenX = " + eventElement.screenX + "<br/>";
result += "screenY = " + eventElement.screenY + "<br/>";
result += "shiftKey = " + eventElement.shiftKey + "<br/>";
result += "target.id = " + eventElement.target.id + "<br/>";
result += "type = " + eventElement.type + "<br/>";
}
catch(e) {
alert("Error:" + e.message);
}
$get('Label2').innerHTML = result;
}
</script>