event-handling

I have received comments from blind users that some of my sound and music related apps only work with VoiceOver off. With VoiceOver Accessibility enabled on an iOS device, is it possible to enable a music keyboard or drum pad touch area so that music sounds can be played immediately, instead of VoiceOver prompts, when a keyboard key or virtual drum set (etc.) is tapped? Just setting the UIAccessibilityTraitPlaysSound AccessibilityTrait on a UIView subview doesn't seem to do it. I get VoiceOver clicking instead of piano or drum sounds with VoiceOver enabled. A blind user can turn VoiceOver

In the latest video by Rx team Bart De Smet: Rx Update - .NET 4.5, Async, WinRT I saw that WinRT events exposed to .NET by some really strange metadata, more preciesly - add_ / remove_ pair methods signature: EventRegistrationToken add_MyEvent(EventHandler<MyEventArgs> handler) { … } void remove_MyEvent(EventRegistrationToken registrationToken) { … } It looks really great, allowing unsubscribing from event by "disposing" the registration token (Rx does the same kind of thing, returning IDisposable instance from Subscribe() method). So it's became possible to easily unsubscribe lamba

I want to attach a click event to a button element and then later remove it, but I can't get unclick() or unbind() event(s) to work as expected. In the code below, the button is tan colour and the click event works. window.onload = init; function init() { $("#startButton").css('background-color', 'beige').click(process_click); $("#startButton").css('background-color', 'tan').unclick(); } How can I remove events from my elements? There's no such thing as unclick() . Where did you get that from? You can remove individual event handlers from an element by calling unbind: $("#startButton").unbind(

I'm attaching a custom event handler to the body in jQuery's ready method. Afterwards I immediately trigger the custom event but nothing seems to happen. $(function(){ $("body").on("test", function(){ alert("test triggered"); } $("body").trigger("test"); } Firstly you have a syntax error $(function(){ $("body").on("test", function(){ alert("test triggered"); }); < ---- Missing this $("body").trigger("test"); }); Secondly you cannot trigger the event from the console , as $(function() {}); forms a closure and you will not have access to any of the methods inside them For it to work like you are

I'm porting a Delphi 5 app to D2010, and I've got a bit of a problem. On one form is a TImage component with an OnMouseMove event that's supposed to update a label whenever the mouse is moved over the image. This worked just fine in the original app, but now the OnMouseMove event fires constantly whenever the mouse is over the image, whether it's moving or not, which causes the label to flicker horribly. Does anyone know what's causing this and how to fix it? My psychic debugging sense tells me that you are on Windows, the label is a tooltip window and you are updating on every mousemove. In