onhelp event

Fires when the user presses the F1 key while the client is the active window.


HTML Attribute <element onhelp = "handler(event)">
Event Property object.onhelp = handler;
attachEvent Method object.attachEvent("onhelp", handler)
addEventListener Method object.addEventListener("help", handler, useCapture)


Event information

Synchronous No
Bubbles Yes
Cancelable Yes


Event handler parameters

Standards information

There are no standards that apply here.


Firing the HTMLLinkElementEvents2::onhelp event opens an online Help window.

To invoke this event, do one of the following:

  • Press the F1 key.

The pEvtObj parameter is required for the following interfaces: