onhelp event

[This documentation is preliminary and is subject to change.]

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)

Standards information

There are no standards that apply here.

Event information

Synchronous No
Bubbles No
Cancelable No

Event handler parameters


Firing the 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:



Build date: 1/23/2012