MouseEvent.ctrlKey

by 3 contributors:

The MouseEvent.ctrlKey read-only property returns a Boolean that indicates if the control key was pressed (true) or not (false) when the event occured.

Syntax

var ctrlKeyPressed = instanceOfMouseEvent.ctrlKey

Return value

A boolean

Example

<html>
<head>
<title>ctrlKey example</title>

<script type="text/javascript">

function showChar(e){
  alert(
    "Key Pressed: " + String.fromCharCode(e.charCode) + "\n"
    + "charCode: " + e.charCode + "\n"
    + "CTRL key pressed: " + e.ctrlKey + "\n"
  );
}

</script>
</head>

<body onkeypress="showChar(event);">
<p>Press any character key, with or without holding down the CTRL key.<br />
You can also use the SHIFT key together with the CTRL key.</p>
</body>
</html>

Specifications

Specification Status Comment
Document Object Model (DOM) Level 3 Events Specification
The definition of 'MouseEvent.ctrlKey' in that specification.
Working Draft No change from Document Object Model (DOM) Level 2 Events Specification.
Document Object Model (DOM) Level 2 Events Specification
The definition of 'MouseEvent.ctrlKey' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Firefox Mobile (Gecko) Android IE Mobile Opera Mobile Safari Mobile
Basic support ? ? ? ? ?

See also

Document Tags and Contributors

Contributors to this page: teoli, amycb, Jeremie
Last updated by: teoli,