class MouseEvent

# class MouseEvent | Introduced in DOM Level 2 More...
Full name | `DOM::MouseEvent`
Definition | `#include <dom2_events.h>`
Inherits | DOM::UIEvent [public ]
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#### Public Methods

- MouseEvent ()
- MouseEvent (const MouseEvent &other)
- MouseEvent (const Event &other)
- MouseEvent & operator = (const MouseEvent &other)
- MouseEvent & operator = (const Event &other)
- virtual ~MouseEvent ()
- long screenX () const
- long screenY () const
- long clientX () const
- long clientY () const
- bool ctrlKey () const
- bool shiftKey () const
- bool altKey () const
- bool metaKey () const
- unsigned short button () const
- Node relatedTarget () const
- void initMouseEvent (const DOMString &typeArg, bool canBubbleArg, bool cancelableArg, const AbstractView &viewArg, long detailArg, long screenXArg, long screenYArg, long clientXArg, long clientYArg, bool ctrlKeyArg, bool altKeyArg, bool shiftKeyArg, bool metaKeyArg, unsigned short buttonArg, const Node &relatedTargetArg)

#### Protected Methods

- MouseEvent (MouseEventImpl *impl)

## Detailed Description

Introduced in DOM Level 2

The MouseEvent interface provides specific contextual information associated with Mouse events.

The detail attribute inherited from UIEvent indicates the number of times a mouse button has been pressed and released over the same screen location during a user action. The attribute value is 1 when the user begins this action and increments by 1 for each full sequence of pressing and releasing. If the user moves the mouse between the mousedown and mouseup the value will be set to 0, indicating that no click is occurring.

In the case of nested elements mouse events are always targeted at the most deeply nested element. Ancestors of the targeted element may use bubbling to obtain notification of mouse events which occur within its descendent elements.

MouseEvent () | ### MouseEvent

MouseEvent (const MouseEvent &other) | ### MouseEvent

MouseEvent (const Event &other) | ### MouseEvent

MouseEvent & operator = (const MouseEvent &other) | ### operator =

Reimplemented from UIEvent.

MouseEvent & operator = (const Event &other) | ### operator =

Reimplemented from UIEvent.

~MouseEvent () | ### ~MouseEvent

[virtual]

long screenX () | ### screenX

[const]

The horizontal coordinate at which the event occurred relative to the origin of the screen coordinate system.

long screenY () | ### screenY

[const]

The vertical coordinate at which the event occurred relative to the origin of the screen coordinate system.

long clientX () | ### clientX

[const]

The horizontal coordinate at which the event occurred relative to the DOM implementation's client area.

long clientY () | ### clientY

[const]

The vertical coordinate at which the event occurred relative to the DOM implementation's client area.

bool ctrlKey () | ### ctrlKey

[const]

Used to indicate whether the 'ctrl' key was depressed during the firing of the event.

bool shiftKey () | ### shiftKey

[const]

Used to indicate whether the 'shift' key was depressed during the firing of the event.

bool altKey () | ### altKey

[const]

Used to indicate whether the 'alt' key was depressed during the firing of the event. On some platforms this key may map to an alternative key name.

bool metaKey () | ### metaKey

[const]

Used to indicate whether the 'meta' key was depressed during the firing of the event. On some platforms this key may map to an alternative key name.

unsigned short button () | ### button

[const]

During mouse events caused by the depression or release of a mouse button, button is used to indicate which mouse button changed state. The values for button range from zero to indicate the left button of the mouse, one to indicate the middle button if present, and two to indicate the right button. For mice configured for left handed use in which the button actions are reversed the values are instead read from right to left.

Node relatedTarget () | ### relatedTarget

[const]

Used to identify a secondary EventTarget related to a UI event. Currently this attribute is used with the mouseover event to indicate the EventTarget which the pointing device exited and with the mouseout event to indicate the EventTarget which the pointing device entered.

void initMouseEvent (const DOMString &typeArg, bool canBubbleArg, bool cancelableArg, const AbstractView &viewArg, long detailArg, long screenXArg, long screenYArg, long clientXArg, long clientYArg, bool ctrlKeyArg, bool altKeyArg, bool shiftKeyArg, bool metaKeyArg, unsigned short buttonArg, const Node &relatedTargetArg) | ### initMouseEvent

The initMouseEvent method is used to initialize the value of a MouseEvent created through the DocumentEvent interface. This method may only be called before the MouseEvent has been dispatched via the dispatchEvent method, though it may be called multiple times during that phase if necessary. If called multiple times, the final invocation takes precedence. Parameters

Parameters:

typeArg | Specifies the event type.
canBubbleArg | Specifies whether or not the event can bubble.
cancelableArg | Specifies whether or not the event's default action can be prevented.
viewArg | Specifies the Event's AbstractView.
detailArg | Specifies the Event's mouse click count.
screenXArg | Specifies the Event's screen x coordinate
screenYArg | Specifies the Event's screen y coordinate
clientXArg | Specifies the Event's client x coordinate
clientYArg | Specifies the Event's client y coordinate
ctrlKeyArg | Specifies whether or not control key was depressed during the Event.
altKeyArg | Specifies whether or not alt key was depressed during the Event.
shiftKeyArg | Specifies whether or not shift key was depressed during the Event.
metaKeyArg | Specifies whether or not meta key was depressed during the Event.
buttonArg | Specifies the Event's mouse button.
relatedTargetArg | Specifies the Event's related EventTarget.

MouseEvent (MouseEventImpl *impl) | ### MouseEvent

[protected]

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