events

Delphi: How to call a method when i click a control?

i have a method: procedure Frob(Sender: TObject); that i want to call when i click a menu item. The method comes to me though an interface: animal: IAnimal; IAnimal = interface procedure Frob(Sender: TObject); end; The question revolves around what to assign to the OnClick event handler of a menu item (i.e. control): var a...

Detecting html textarea's change

Hi, I'd like to monitor my textarea's changes with jQuery. I can do this with the keyup event and it works perfectly. But what event I can get when a user click on the textarea (right mouse click), then choose paste? Click event occur only when the user click with the left mouse button on the textarea. How can I handle this situation...

Actionscript: Switching back into previous function from event handler function

I need to return to my original function after capturing an event (downloading something) with another function. The original function needs to return a value, which depends on the downloaded data. So, I'd like to pause original function for the time needed for the download and the eventhandler function to complete it's work, and resume ...

jQuery and executing code until mouseout is called

Good day all, I am tasked with building a slider for our site. Here is my goal: <div id="abc"> <div id="slider">...</div> </div> I need to move "slider" left 30px at a time when a button is hovered over, and right 30px when another button is hovered over. My problem is that there doesn't seem to be a reliable method for telling the...

How to get currently adding item to SPList from SPItemEventProperties inside event handler?

Hi, I'm using ItemAdding Event for one of my SPLists. The question is how I can get the new not yet added item from SPItemEventProperties? I've tried to ListItem.Item but the debuger shows that the property is set to Nothing. Any correction suggest? Best Regards T.S. ...

Question about when and when not to raise events (C#)

I am programming an instant messaging library for MSN Messenger, and I have a simple question about raising events. When logging in, should I be raising UserAdded for each user that is synchronized (already on the contact list), or should the UserAdded event be reserved for when a new user has been added to the contact list via the AddU...

Doing things depending of the action in a web page with Jquery.

Hi... Anyone know how to do this: When some user left my site by closing the browser or tab or going to other site I would like to do an action (show an alert) and if the user clicks on a link or button to other page of my own site I would like to do another action... If I use unload event I can't differentiate between these two kind ...

BlackBerry - Consuming Click Event from ButtonField

I've developed UI application in blackberry. On Button Click event I want to display result of adding two number. How to handle this event in java app of Blackberry? ...

In C#, are event handler arguments contravariant?

If I have a class that raises an event, with (e.g.) FrobbingEventArgs, am I allowed to handle it with a method that takes EventArgs? Here's some code: class Program { static void Main(string[] args) { Frobber frobber = new Frobber(); frobber.Frobbing += FrobberOnFrobbing; frobber.Frob(); } private static ...

Update function

Hello everyone! I try to learn java for android devices.. i have to create the update function. But still have one question: How???? in class root public void update(){ maindebug("update"); // This is my debug function } public void run(){ while(isRunning){ // isRunning is a boolean variable SystemClock.sleep(100); update();...

What event is sent to a Windows Forms window when its button from the taskbar is clicked?

When the user clicks the window title/button in the taskbar, what .NET event (or Windows API message) is sent to the window? I'm using C#/.NET 2.0/Windows Forms. Thank you ...

Question regarding checking the state of a checkbox class

I'll try and make this question simple. Can I assign a class to a series of different checkboxes, and use Jquery to do something when any one of those checkboxes is checked? Searching around on the internet I have found documentation on grabbing the name: $('input[name=foo]').is(':checked') but when I swap out the name attribute for the ...

JavaScript: catching URI change

I have a site where I'm using hash based parameters, eg. http://url.of.site/#param1=123 What I want When the user manually changes the URI to eg. http://url.of.site/#param1=789 When the user enters this URI, the event is caught by the JavaScript, and the appropriate functions are called. Basically, what I'm wondering about is; is ...

waiting for 2 different events in a single thread

REMOVED - reason: not really needed. my questions are: can I use a linux UDP socket from two different threads? answer was here I have two different events I would like to wait for using just one thread. One of such events is the addition of an element to a stack and another is the availability of data on a socket. I can use a boost::...

Outlook Addin: DispEventAdvise exception.

I want to creating an addin that captures when a {contact, calendar, task, note} is {created, edited, removed}. I have the following code, to make it shorter I removed all the code but the related to contact, since all types will be the same I guess. AutoSync.h class ATL_NO_VTABLE AutoSync : public wxPanel, public IDispEventSimpleIm...

Is it possible to remove all event handlers of a given element in javascript?

Hi, I would like to remove ALL handlers for a given event type. Let's say I've added twice "onclick event" to a button and now I would like to return back to the original state where no event handler was set to the button. How can I do that? P.S.: I've found removeEventListener (non-IE)/detachEvent (IE) methods but the functions want...

no longer an issue

I am still new to c# and wpf This program is a clock with different view and I would like to use the context menu to change between view, but the error says that there is no definition or extension method for the events. Right now I have the event I'm working on popping up a MessageBox just so I know it has run, but I cannot get it to co...

Is it possible in .NET, using C#, to achieve event based asynchronous pattern without multithreading?

I am amazed by the architectural design of node.js and was wondering if C# is capable of such design: Asynchronous, event based / event loop, non-blocking IO without multithreading. ...

Programmatically manipulating DOM element value doesn't fire onchange event

Hi all. I've got a hidden form field, and when a button gets pressed the value of the hidden field is changed. Now, I've added an observer to the hidden field, listening for changes to occur. For some reason, though, the event listener never kicks in, even though the value of the hidden element changes. I'm using Prototype and Firefox 3...

Using JQuery to get text of a div that's a child of a header to replace a different header

Hello all, I'm trying to get the text contents of a .div('.child#') child of my event.target('h6.class'), and replace my other headers('h1.replacHeader#') using this script below... $('h6.HeaderToBeClicked').click(function(event) { var $target = $(this); $('.replaceHeader1').replaceWith("<h1 class='replaceHeader1'>" + $target.c...