event-handling

I'm a newbie to WMI and I need to implement RegistryValueChangeEvent in a C# service. I need an event handler that gets triggered each time any one of a set of registry values is changed. I want behavior similar to the FileSystemWatcher class's Changed event, but for registry values. If there's some other technique I could use to accomplish the same task, I'd appreciate that as well. My minimum requirement is that it be a better solution than what I have now: polling every 20 seconds and comparing the registry value with the last result. Please provide example code in your answer. If I can get

Can anyone tell me the difference between the KeyDown event, the KeyPress event and the KeyUp event? I checked the msdn site and it does not explain it much. Can anyone tell me in simple logical sense when each of the event occurs? I feel that all the above event occurs when a key is pressed. So what is the exact difference between them. Roy T. KeyDown: happens when the person presses a key (when the keyboard first detects a finger on a key, this happens when the key is pressed down). KeyPress: happens when a key is pressed and then released. KeyUp: happens when the key is released You are

If I attach multiple event handlers to a single event on a single DOM element, are the event handlers guaranteed to be called in the order they were added? Or should I not rely on this behavior? Bergi This has been changed with DOM3! While the DOM level 2 events specification did state When the event reaches the target, any event listeners registered on the EventTarget are triggered. Although all EventListeners on the EventTarget are guaranteed to be triggered by any event which is received by that EventTarget , no specification is made as to the order in which they will receive the event with

I'm using the following code to detect when a dynamically generated button is clicked. $(document).on("click",".appDetails", function () { alert("test"); }); Normally, if you just did $('.appDetails').click() you could use $(this) to get the element that was clicked on. How would I accomplish this with the above code? For instance: $(document).on("click",".appDetails", function () { var clickedBtnID = ?????? alert('you clicked on button #' + clickedBtnID); }); bipen As simple as it can be Use $(this) here too $(document).on("click",".appDetails", function () { var clickedBtnID = $(this).attr(

In my application, I need to handle both move and click events. A click is a sequence of one ACTION_DOWN action, several ACTION_MOVE actions and one ACTION_UP action. In theory, if you get an ACTION_DOWN event and then an ACTION_UP event - it means that the user has just clicked your View. But in practice, this sequence doesn't work on some devices. On my Samsung Galaxy Gio I get such sequences when just clicking my View: ACTION_DOWN, several times ACTION_MOVE, then ACTION_UP. I.e. I get some unexpectable OnTouchEvent firings with ACTION_MOVE action code. I never (or almost never) get sequence