3.3 HTML Events

► |  | Myster X: Using Windows COM Objects in Racket

1 | Overview
2 | COM
3 | Active X and DHTML
4 | Version
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▼ | 3 | Active X and DHTML

3.1 | Browsers
3.2 | Documents
3.3 | HTML Events
3.4 | HTML and Dynamic HTML

On this page:

mx-event<%>
keypress?
keydown?
keyup?
mousedown?
mousemove?
mouseover?
mouseout?
mouseup?
click?
dblclick?
error?
alt-key
ctrl-key
from-tag
from-id
id
keycode
shift-key
tag
to-tag
to-id
x
y

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#### 3.3`` HTML Events

MysterX HTML events are generated by mouse and keyboard interaction with HTML elements in a document.

mx-event<%> : interface?

> ( send a-mx-event keypress?) → boolean?
> ( send a-mx-event keydown?) → boolean?
> ( send a-mx-event keyup?) → boolean?
> ( send a-mx-event mousedown?) → boolean?
> ( send a-mx-event mousemove?) → boolean?
> ( send a-mx-event mouseover?) → boolean?
> ( send a-mx-event mouseout?) → boolean?
> ( send a-mx-event mouseup?) → boolean?
> ( send a-mx-event click?) → boolean?
> ( send a-mx-event dblclick?) → boolean?
> ( send a-mx-event error?) → boolean?

> Exactly one of these methods returns #t to indicate the type of a given event, and the others return #f for the event.

> ( send a-mx-event alt-key) → boolean?

> Returns #t if the Alt key was pressed when the event was generated, #f otherwise.

> ( send a-mx-event ctrl-key) → boolean?

> Returns #t if the Ctrl key was pressed when the event was generated, #f otherwise.

> ( send a-mx-event from-tag) → string?

> Returns a string indicating the tag of the HTML element where the mouse is being moved from. The return value is valid only for events for which mouseover? or mouseout? produces #t.

> ( send a-mx-event from-id) → string?

> Returns a string indicating the identifier of the HTML element where the mouse is being moved from. Return value is valid only for events for which mouseover? or mouseout? produces #t.

> ( send a-mx-event id) → string?

> Returns a string indicating the identifier of the HTML element where the event occurred.

> ( send a-mx-event keycode) → exact-integer?

> Returns a number indicating the keycode for the key that generated the event. Return value is valid only for events for which keypress?, keydown?, or keyup? produces #t.

> ( send a-mx-event shift-key) → boolean?

> Returns #t if the Shift key was pressed when the event was generated, #f otherwise.

> ( send a-mx-event tag) → string?

> Returns a string indicating the HTML tag of the element where the event occurred.

> ( send a-mx-event to-tag) → string?

> Returns a string indicating the tag of the target HTML element where the mouse is being moved to. Return value is valid only for events for which mouseover? or mouseout? produces #t.

> ( send a-mx-event to-id) → boolean?

> Returns a string indicating the identifier of the target HTML element where the mouse is being moved from. Return value is valid only for events for which mouseover? or mouseout? produces #t.

> ( send a-mx-event x) → exact-integer?

> Returns an integer indicating the x-coordinate within the document where the event occurred.

> ( send a-mx-event y) → exact-integer?

> Returns an integer indicating the y-coordinate within the document where the event occurred.

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