The onmousewheel property sets and returns the event handler for the mousewheel event.


element.onmousewheel = handlerFunction;
var handlerFunction = element.onmousewheel;

handlerFunction should be either null or a JavaScript function specifying the handler for the event.


See the DOM event handlers page for information on working with on... handlers.

The mousewheel event is fired asynchronously when a mouse wheel or similar device is operated. It's represented by the MouseWheelEvent interface.

See the mousewheel event documentation for more information about the event.


Specification Status Comment
WHATWG HTML Living Standard
The definition of 'mousewheel' in that specification.
Living Standard  

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 Contributors to this page: rolfedh, Guillaume-Heras
 Last updated by: rolfedh,