MouseEvent : UIEvent
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Provides information for a Mouse-related event.

Constructors

Constructor Action IE Mozilla Netscape Opera Safari Chrome
MouseEvent Constructor() : MouseEvent
Provides information for a Mouse-related event.
 Show Details

MouseEvent() : MouseEvent

Provides information for a Mouse-related event.

Returns
MouseEvent

Visibility
internal

Properties

Property Action IE Mozilla Netscape Opera Safari Chrome
altKey : Boolean
If true, indicates that the user pressed the "Alt" key while the event occurred.
 Show Details 4.0+ 1.0+ 6.0+ no 1.0+ no

For examples, see the quirksmode test page:

http://www.quirksmode.org/js/events/keys.html

Availability

HTML DOM Level 2|W3C
button : Number
Specifies which mouse button was clicked or released during a mousedown, mouseup, or click event.
 Show Details 5.0+ 1.75+ 6.0+ 8.0+ 1.2+ no
  • IE: Left button="1". Right button="2". Middle button="4".
  • Mozilla: Left button="0". Right button="1". Middle button="2". On Mac, recognizies "shift+click" as a right-button click.
  • Safari: Only detects the Left button click.
  • Opera: Left button="0". Right button="1". Middle button="2".

For examples, see the quirksmode test page:

http://www.quirksmode.org/js/events/button.html

Availability

HTML DOM Level 2|W3C
clientX : Number
Horizontal (x) coordinate of the mouse pointer in the window.
 Show Details 4.0+ 1.0+ 6.0+ 7.0+ 1.0+ no
Availability

HTML DOM Level 2|W3C
clientY : Number
Vertical (y) coordinate of the mouse pointer in the window.
 Show Details 4.0+ 1.0+ 6.0+ 7.0+ 1.0+ no
Availability

HTML DOM Level 2|W3C
ctrlKey : Boolean
If true, indicates that the user pressed the "Ctrl" key while the event occurred.
 Show Details 4.0+ 1.0+ 6.0+ 7.0+ 1.0+ no

For examples, see the quirksmode test page:

http://www.quirksmode.org/js/events/keys.html

Availability

HTML DOM Level 2|W3C
metaKey : Boolean
If true, indicates that the user pressed the "Meta" key while the event occurred.
 Show Details no 1.75+ no no 1.0+ no
  • Mozilla: Mac only.

For examples, see the quirksmode test page:

http://www.quirksmode.org/js/events/keys.html

Availability

HTML DOM Level 2|W3C
relatedTarget : EventTarget
Node related to the target node for the event.
 Show Details no 1.0+ no 7.0+ 1.0+ no

For examples, see the quirksmode test page:

http://www.quirksmode.org/js/events/targets.html

Availability

HTML DOM Level 2|W3C
screenX : Number
Horizontal (x) coordinate of the mouse pointer relative to the upper-left corner of the client screen.
 Show Details 5.0+ 1.75+ 6.0+ 8.0+ 1.2+ no

For examples, see the quirksmode test page:

http://www.quirksmode.org/js/events/mouseposition.html

Availability

HTML DOM Level 2|W3C
screenY : Number
Vertical (y) coordinate of the mouse pointer relative to the upper-left corner of the client screen.
 Show Details 5.0+ 1.75+ 6.0+ 8.0+ 1.2+ no

For examples, see the quirksmode test page:

http://www.quirksmode.org/js/events/mouseposition.html

Availability

HTML DOM Level 2|W3C
shiftKey : Boolean
If true, indicates that the user pressed the "Shift" key while the event occurred.
 Show Details 5.0+ 1.75+ 6.0+ 8.0+ 1.2+ no

For examples, see the quirksmode test page:

http://www.quirksmode.org/js/events/keys.html

Availability

HTML DOM Level 2|W3C

Functions

Method Action IE Mozilla Netscape Opera Safari Chrome
initMouseEvent() : void
Sets the initial property values for a new MouseEvent object.
 Show Details no 1.0+ 6.0+ 7.0+ 1.0+ no

Returns
void

Availability

HTML DOM Level 2|W3C

References

Event|UIEvent

Availability

HTML DOM Level 2|W3C

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