Definition and Usage
The ctrlKey event attribute returns a Boolean value that indicates whether or not the "CTRL" key was pressed when an event was triggered.
Syntax
event.ctrlKey=true|false|1|0<html>
<head>
<script type="text/javascript">
function isKeyPressed(event)
{
if (event.ctrlKey==1)
{
alert("The CTRL key was pressed!");
}
else
{
alert("The CTRL key was NOT pressed!");
}
}
</script>
</head>
<body onmousedown="isKeyPressed(event)">
<p>Click somewhere in the document. An alert box will tell you if you pressed the CTRL key or not.</p>
</body>
</html>
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