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    HTMLElement.oncopy

    Non-standard
    This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

    Summary

    The oncopy property returns the onCopy event handler code on the current element.

    Syntax

    element.oncopy = functionRef;

    where functionRef is a function - often a name of a function declared elsewhere or a function expression. See JavaScript Reference:Functions for details.

    Example

    <!DOCTYPE html>
    <html>
    <head>
    <title>oncopy event example</title>
    
    <script>
    function log(txt) {
        document.getElementById("log").appendChild(document.createTextNode(txt + "\n"));
    }
    </script>
    </head>
    
    <body>
    <div oncopy="log('Copy blocked!'); return false;">Try copying this text!</div>
    
    <h3>Log</h3>
    <textarea rows="15" cols="80" id="log" readonly="true"></textarea>
    </body>
    </html>

    This example prevents the text from being copied out of the browser window.

    Notes

    This event is sent when the user attempts to copy text.

    Since Firefox 13, the preference dom.event.clipboardevents.enabled controls this feature. It defaults to true but can be disabled.

    Specification

    Not part of specification.

    See also

    Document Tags and Contributors

    Last updated by: fscholz,
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