|
Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.arcetri.astro.it/irlab/doc/library/javascript/clientreference/event.htm
Дата изменения: Thu Oct 7 13:13:37 1999 Дата индексирования: Sat Dec 22 14:18:26 2007 Кодировка: Поисковые слова: п п п п п п c 1999 s4 linear |
event object contains properties that describe a JavaScript event, and is passed as an argument to an event handler when the event occurs.event object contains the type of event (in this case MouseDown), the x and y position of the cursor at the time of the event, a number representing the mouse button used, and a field containing the modifier keys (Control, Alt, Meta, or Shift) that were depressed at the time of the event. The properties used within the event object vary from one type of event to another. This variation is provided in the descriptions of individual event handlers.
See Chapter 3, "Event Handlers," for complete information about event handlers. For more information on handling events, see the Client-Side JavaScript Guide.
event objects are created by Communicator when an event occurs. You do not create them yourself.
UniversalBrowserWrite privilege. In addition, getting the data property of the DragDrop event requires the UniversalBrowserRead privilege. For information on security, see the Client-Side JavaScript Guide.
watch and unwatch methods from Object.
<A HREF="http://home.netscape.com" onClick='alert("Link got an event: "
+ event.type)'>Click for link event</A>
The following example uses the event object in an explicitly called event handler.
<SCRIPT>
function fun1(evnt) {
alert ("Document got an event: " + evnt.type);
alert ("x position is " + evnt.layerX);
alert ("y position is " + evnt.layerY);
if (evnt.modifiers & Event.ALT_MASK)
alert ("Alt key was down for event.");
return true;
}
document.onmousedown = fun1;
</SCRIPT>
UniversalBrowserWrite privilege. In addition, getting this property for the DragDrop event requires the UniversalBrowserRead privilege. For information on security, see the Client-Side JavaScript Guide.
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.width
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.x property.
event.layerY
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.y property.
event.layerX
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.which
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.pageY
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.pageX
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.screenY
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.screenX
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.type
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.target
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.modifiers
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.height
UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.layerX property.
event.y
layerY.UniversalBrowserWrite privilege. For information on security, see the Client-Side JavaScript Guide.
event.layerY property.
event.x
Last Updated: 05/28/99 11:59:24