keyboard-events

I'm trying to simulate text input into a JTextField . I've got a 1 char long string containing the letter I want to add and I run: receiver.dispatchEvent(new KeyEvent(this, KeyEvent.KEY_TYPED, 0, this.shifted?KeyEvent.SHIFT_DOWN_MASK:0, KeyEvent.VK_UNDEFINED, text.charAt(0))); But this doesn't seem to change the contents at all. What am I missing here? Looks like a virtual keyboard to me :-) Almost the exact same code does work for me. I would suggest the following: Pass the target JTextField (in your case, receiver ) as the source parameter to the KeyEvent constructor, i.e.: receiver

I know there's FocusPanel on which I can attach such handlers, but in my experience this component does not behave that well. So I'd like to avoid it as much as possible. So I'm wondering why there's no way to attach key handlers on document too? According to quirksmode.org it works cross-browser, so this shouldn't be a concern. I've also tried writing some JSNI code to do this myself, which works ok for most cases. However, if there's any other widget that listens for the same event as me on document, and that widget lets the event propagate, I can do pretty much nothing with the event that

Here I have sample window with a grid. I need to capture event when key is pressed. But it is not raising when I click grid area and then press key. It will work only if Textbox is focused. I know it will work if I capture it from Window. But I have other application with few usercontrols and I need to capture it from distinct ones. I tried to set Focusable.false for Window and true for Grid but it not helps. Any solutions? <Window x:Class="Beta.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow

I'm pondering taking the plunge to WPF from WinForms for some of my apps, currently I'm working on the combined barcode-reader/text-entry program (healthcare patient forms). To be able to process the barcode characters, I rely on the Keypreview property in WinForms (because barcodes can be scanned regardless of what control has the focus). But I cannot seem to find a KeyPreview property in neither VS2008 or VS2010, for a WPF app. Is there an alternative approach/solution to handle my barcode characters in WPF? Rgrds Henry use the override in your own UserControls or Controls (this is an

I want my JavaFX program to respond to keyboard events. I tried adding listeners to root Pane , to topmost Pane , but it doesn't respond to events! Here is my code: AnchorPane root = new AnchorPane(); root.setOnKeyPressed(new EventHandler<KeyEvent>() { @Override public void handle(KeyEvent t) { pressKey(t.getCharacter().charAt(0)); } }); root.setOnKeyReleased(new EventHandler<KeyEvent>() { @Override public void handle(KeyEvent t) { releaseKey(t.getCharacter().charAt(0)); } }); root.addEventHandler(EventType.ROOT, new EventHandler<Event>() { @Override public void handle(Event t) { if (t

I have a HTML5/Javascript (Sencha) app that I have packed into PhoneGap for iOS in XCode. One way or another, I want to be able to listen for the keyboard open/close events and do something accordingly. Is there any way to do this? Keyboard will be automatically invoked while you are focusing textfield, textareafield ... . So you can create listener to the focus event in javascript which is similar to listening to the keyboard open event. Also you can use the blur listener to handle the keyboard close. Thanks. I've encountered the same issue, and I think that the best solution in your case is

How to handle arrow key event in Cocoa app? But, but, but...I don't wanna be an NSResponder subclass. @interface AMonitorNotAResponder : NSObject @end @implementation AMonitorNotAResponder { id eventMonitor; // An event monitor object; instance of // private class _NSLocalEventObserver } - (id)init { self = [super init]; if( !self ) return nil; NSEvent * (^monitorHandler)(NSEvent *); monitorHandler = ^NSEvent * (NSEvent * theEvent){ switch ([theEvent keyCode]) { case 123: // Left arrow NSLog(@"Left behind."); break; case 124: // Right arrow NSLog(@"Right as always!"); break; case 125: // Down