共用方式為

onmouseenter event

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Fires when the user moves the mouse pointer into the object.

Syntax

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

 

Event information

Synchronous No
Bubbles No
Cancelable No

 

Event handler parameters

Standards information

There are no standards that apply here.

Remarks

The event fires only if the mouse pointer is outside the boundaries of the object and the user moves the mouse pointer inside the boundaries of the object. If the mouse pointer is currently inside the boundaries of the object, for the event to fire, the user must move the mouse pointer outside the boundaries of the object and then back inside the boundaries of the object.

Unlike the HTMLMapEvents::onmouseover event, the HTMLMapEvents::onmouseenter event does not bubble. In other words, the HTMLMapEvents::onmouseenter event does not fire when the user moves the mouse pointer over elements contained by the object, whereas HTMLMapEvents::onmouseover does fire.

Initiates any action associated with this event.

To invoke this event, do one of the following:

  • Move the mouse pointer inside the boundaries of an object.

The pEvtObj parameter is required for the following interfaces: