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Topic: Event handler


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In the News (Fri 27 Nov 09)

  
  DOM:event - MDC
The Event interface itself is described, as well as the interfaces for event registration on nodes in the DOM, event handlers and event listeners, and several longer examples that show how the various event interfaces relate to one another.
Event handlers may be attached to various elements in the DOM.
These and the various Event Handlers on HTML or XML elements are the main entry points for events in the DOM.
developer.mozilla.org /en/docs/DOM:event   (785 words)

  
 Understanding the Event Model
Event bubbling ensures that the event handlers for all elements in which an event occurs have an opportunity to respond to the event.
Event handlers can return values to the event either by using the return value mechanism defined for the language, such as the return statement for JScript, or by using the returnValue property of the event object.
For the onmouseover and onmouseout events, the toElement and fromElement properties specify the elements the mouse is moving to and from.
msdn.microsoft.com /workshop/author/om/event_model.asp   (5248 words)

  
 Event Handlers
Event handlers are optional commands that are executed whenever a host or service state change occurs.
You may also specify global event handlers that should be run for every host or service state change by using the global_host_event_handler and global_service_event_handler options in your main configuration file.
Any event handler commands you configure will execute with the same permissions as the user under which Nagios is running on your machine.
nagios.sourceforge.net /docs/1_0/eventhandlers.html   (1182 words)

  
 11.6 - Adding Event Handlers
However, you may want to add an event handler to the entire contents, that is, all the elements defined in the content tag.
If an event does not match any of the handler events, it is simply passed to the inner content as usual.
For key events, you can use a number of attributes similar to those for the key element to match a specific key and match only when certain modifer keys are pressed.
www.xulplanet.com /tutorials/xultu/xblevents.html   (986 words)

  
 Supporting Three Event Models at Once
Event binding through element attributes has the advantage of allowing you to pass parameters to the event handler’s function.
From the discussion of event binding techniques earlier in this article, you might deduce one reason why the event object is so vital to scripts: with the exception of tag attribute binding, no binding approach permits parameter passing to the event handler function.
Therefore, in the events example, the mouse events bubble upward from their true targets to the text node’s container (that is, the SPAN element).
developer.apple.com /internet/webcontent/eventmodels.html   (2926 words)

  
 JavaScript Example 1-4 -- Event Handler   (Site not responding. Last check: 2007-10-12)
Event handlers can be written in any supported scripting language but, not surprisingly, we're only concerned with JavaScript here.
Comparing this example to our first one-line event handler, aside from the fact that it is larger and uses forms, there are only a few additional ideas.
This is a useful convenience -- the event handler doesn't have to worry about which form or which checkbox to use for output.
www.chipchapin.com /WebTools/JavaScript/example1-04.html   (1570 words)

  
 Event Handler Script for Mouse Events in Flash MX
The event handlers will be treated separately here, although they can work together on the same button in combination.
Now that the path to the movie clip is set, and action is set to play, you will need to set your event handler to press, and remove release as the handler mouse action.
Set the event handler up for the appropriate event action for each button.  When you get to the key press, set the key stroke up as the letter e.
www.developingwebs.net /flash/eventhandlerscriptmouse.php   (559 words)

  
 Enterprise Manager Event Handler   (Site not responding. Last check: 2007-10-12)
Prior to passing event notifications for further processing, the Event Handler also provides a simple filtering mechanism that allows system administrators to specify the conditions by which the events are passed to either or both components.
The Event Handler parameters are single-line entries that specify the events to which the Event Handler should respond and actions to be taken in response to these events.
Typically, the way to configure the Event Handler would be to export the current configuration to a file, edit the file to change the entries, and then import the file back into the Enterprise Manager repository.
www.cs.uvm.edu /oracle9doc/em.901/a88767/ch_handl.htm   (3822 words)

  
 Event-driven programming - Wikipedia, the free encyclopedia
Event-driven programs typically consist of a number of small programs called event handlers, which are to be called in response to external events, and a dispatcher, which calls the event handlers, often using an event queue to hold unprocessed events.
At the lowest level, interrupt handlers act as direct event handlers for hardware events, with the CPU hardware performing the role of the dispatcher.
Because the code for checking for events and the main loop do not depend on the application, many programming frameworks take care of their implementation and expect the user to provide only the code for the event handlers.
en.wikipedia.org /wiki/Event-driven_programming   (1409 words)

  
 Event handler - Wikipedia, the free encyclopedia
Event handlers are a central concept in event-driven programming.
The events initially originate from actions on the operating system level, such as interrupts generated by hardware devices, software interrupt instructions, or state changes in polling.
Event dispatchers may call event handlers directly, or wait for events to be dequeued with information about the handler to be executed.
en.wikipedia.org /wiki/Event_handler   (320 words)

  
 The Internet Explorer Event Model: Event Bubbling - Doc JavaScript
It ends with the final response of the event handler script, the event processing function, or the browser itself (for example, if the user submits a form by clicking a button, the browser would normally submit the form).
The event bubbles up to the next event in the hierarchy, and the event handler for that element is called.
This step repeats until the event reaches the top of the hierarchy or is cancelled by an event handler on its way up.
www.webreference.com /js/column10/eventbubbling.html   (1006 words)

  
 Abrupt Branch to ON Event GOSUB Handler from Separate Handler
This is normal behavior for ON GOSUB trapping, but may be undesirable for those who want to disable all event trapping within an ON handler.
Within an ON GOSUB handler, event trapping is suspended within the handler for only the trapped event.
Any other active event traps (set with other ON GOSUB statements) triggered within an event handler will cause control to immediately branch to the other ON handler during execution of the initial handler.
support.microsoft.com /kb/64430   (569 words)

  
 Event Handlers   (Site not responding. Last check: 2007-10-12)
This chapter contains the event handlers that are used with client-side objects in JavaScript to evoke particular actions.
event handlers are associated with the frame, not the document.
event is fired whenever a system item (file, shortcut, and so on) is dropped onto the browser window using the native system's drag and drop mechanism.
www.submitside.com /javascript_tutorial/handlers.htm   (3607 words)

  
 Events and Event Handlers   (Site not responding. Last check: 2007-10-12)
When you create an event handler, the corresponding JavaScript object gets a property with the name of the event handler in lower case letters.
calls an event handler whose function is to display a new page, the action takes place without returning to the capturing object.
This method explicitly calls the event handler of the event receiver and bypasses the capturing hierarchy.
www.jaws.umn.edu /javascript_1.1/evnt.htm   (1000 words)

  
 Event handler - JAXXWiki   (Site not responding. Last check: 2007-10-12)
An event handler is an attribute on a class tag which begins with
By default, JAXX supports all events which can be discovered through introspection, which means that all event broadcasters that follow standard Java naming conventions are supported.
Event attributes are named according to the names of the methods in the event listener interface.
www.jaxxframework.org /wiki/Event_handler   (157 words)

  
 Example Two: SwingApplication (The Java™ Tutorials > Creating a GUI with JFC/Swing > Learning ...   (Site not responding. Last check: 2007-10-12)
In the declaration for the event handler class, one line of code specifies that the class either implements a listener interface or extends a class that implements a listener interface.
The event handler class has code that implements the methods in the listener interface.
If an event takes too long to execute, the GUI will freeze--that is, it won’t repaint or respond to mouse clicks.
java.sun.com /docs/books/tutorial/uiswing/learn/example2.html   (1029 words)

  
 Event Handler
Make sure the Event Handler service is available by typing the following command at the command prompt (You can also use this command at any time to check the current configuration of the Event Handler.):
Because the Event Handler is an integral part of the Oracle Management Server, the Event Handler is automatically traced when you set up tracing for the Management Server.
Differences between UNIX and Windows NT For Event Handler entries that require a directory path, use the syntax that is appropriate to the operating system.
www.stanford.edu /dept/itss/docs/oracle/9i/em.920/a96670/ch_handl.htm   (4083 words)

  
 Event Handlers (AIR 2003 Training)
However, since this type of data manipulation could easily be done at the time of submission or on the server-side, it may still be a good idea not to use
events are most commonly used with image rollovers.
events for rollovers is not necessary for screen reader accessibility, it can add usability benefits for sighted users accessing your site with a keyboard.
cookiecrook.com /AIR/2003/train/eventhandlers.php   (378 words)

  
 Event Handler Function Prototype
Event Handler Prototype functions are used for all functions that handle Winlogon notification events.
For simplicity, only the implementations of the Logon and Logoff event handlers are shown.
You can implement handlers for the rest of the events in exactly the same manner.
msdn2.microsoft.com /en-us/library/aa375405.aspx   (376 words)

  
 Advanced Java Script: onClick and onMouseOver
What we're going to do is add the onMouseOut Event Handler so that when your users pass their mouse over the link, they get words in the status bar.
By the way, in case you're wondering, the onLoad command we used in the first JavaScript tutorial is also an Event Handler and it'll work just like those above did.
If you haven't taken it from the tutorial, these Event Handlers are quite interchangeable.
www.htmlgoodies.com /beyond/javascript/article.php/3470771   (2110 words)

  
 scottandrew.com
The differences in event registration in NS6 and IE5 are a perfect example.
To attach an event to an element, you use that element's addEventListener method to define the type of event to listen for, the handler function to execute when the event is fired, and whether you want to use event capture:
- the object to attach the event handler to
www.scottandrew.com /weblog/articles/cbs-events   (686 words)

  
 CodeToad - Javascript onLoad Event Handler.
Alternatively, call a javascript function from the onload event and process as many commands as you like in the function.
one event is a somple backgroud space script and the other is a roatating image script.
The onUnload Event Handler allows you to perform an action as the user leaves the page.
www.codetoad.com /javascript/miscellaneous/onload_event.asp   (905 words)

  
 Lesson: Learning Swing by Example (The Java™ Tutorials > Creating a GUI with JFC/Swing)
The handling of events is also discussed, as are layout management and accessibility.
The third example, a program that converts a given temperature from Celsius to Fahrenheit, illustrates how to add an event listener to a text field and display the converted temperature on a label.
The fourth example improves our temperature conversion example and illustrates how to add HTML and icons to components, setting the default button and how to create a formatted text field.
java.sun.com /docs/books/tutorial/uiswing/overview/event.html   (375 words)

  
 January 6, 2000 - Cross-Browser Event Handler
There is obviously no way to specify an event handler for an element that doesn't support it.
In any case, if you add an event handler to an element that doesn't support that type of event handler, it has no effect.
Regardless of whether you specify the event handler as a property or as an HTML attribute, the browser does not generate an error (because HTML never causes explicit errors, and adding a new property to an existing object is a legal JavaScript operation).
www.webreference.com /js/tips/000106.html   (405 words)

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