onhelp event
Fires when the user presses the F1 key while the client is the active window.
Syntax
| 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
- pEvtObj [in]
Type: IHTMLEventObj
Standards information
There are no standards that apply here.
Remarks
Firing the HTMLInputImageEvents2::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:
- HTMLAnchorEvents2
- HTMLAreaEvents2
- HTMLButtonElementEvents2
- HTMLControlElementEvents2
- HTMLDocumentEvents2
- HTMLElementEvents2
- HTMLFormElementEvents2
- HTMLImgEvents2
- HTMLFrameSiteEvents2
- HTMLInputFileElementEvents2
- HTMLInputImageEvents2
- HTMLInputTextElementEvents2
- HTMLLabelEvents2
- HTMLLinkElementEvents2
- HTMLMapEvents2
- HTMLMarqueeElementEvents2
- HTMLObjectElementEvents2
- HTMLOptionButtonElementEvents2
- HTMLScriptEvents2
- HTMLSelectElementEvents2
- HTMLStyleElementEvents2
- HTMLTableEvents2
- HTMLTextContainerEvents2
- HTMLWindowEvents2