keyevent

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

HI! I am currently extending an Android Game Framework,which I found in a Book written by Mario Zechner (who also develops Libgdx). It is working great so far and I accomplished a Java Desktop Implementation of the Framework. But one tiny thing is missing, the correct usage of the SoftKeyboard. You can try out and reproduce my bug , the whole project is on github, and the android module is the "app"folder. The java version (left arrow key = key back) is in the javalib module. https://github.com/Railwanderer/AndroidGameFramework The Framework uses Window FullScreenFlags and NoTitle Flags in

I need to know if it is possible to have an action only happen once when a key is pressed, even if that key is held down for some time, and if it is possible, how? This is the code I have for that now: if(e.getKeyCode() == KeyEvent.VK_A) { attack = true; moveX = -5; draw(moveX, moveY); players.get(username).setImageIcon("attack-left"); } This is within the keyPressed method, and in the keyReleased I set moveX to 0. So if A is pressed the image is supposed to 5 units to the left and stop, regardless of whether or not A is still being held down or it has been released. But this is not working,

private void jTextField1KeyPressed(java.awt.event.KeyEvent evt) { //cant capture my TAB? System.out.print(evt.getKeyChar()); } What is the simplest way in an java gui to capture the tab key without doing using the focus listening technique? VK_TAB is the tab constant. However: No Tab key-pressed or key-released events are received by the key event listener. This is because the focus subsystem consumes focus traversal keys, such as Tab and Shift Tab. See: http://docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html To solve this, apply the following to the component that is firing the

I want to intercept Tab key press in my main window to prevent Qt from switching focus. Here's what I've tried so far: bool CMainWindow::event(QEvent * e) { if (e && e->type() == QEvent::KeyPress) { QKeyEvent * keyEvent = dynamic_cast<QKeyEvent*>(e); if (keyEvent && keyEvent->key() == Qt::Key_Tab) return true; } return QMainWindow::event(e); } This doesn't work, event isn't called when I press Tab . How to achieve what I want? The most elegant way I found to avoid focus change is to reimplement in your class derived from QWidget the method bool focusNextPrevChild(bool next) and simply return

Is there a way to emulate key presses of the media keys (volume up/down, play, pause, prev, next) on common Apple notebooks? How? That took some time and many hacks (trying around with ctypes, the IOKit native interface, Quartz and/or Cocoa). This seems like an easy solution now: #!/usr/bin/python import Quartz # NSEvent.h NSSystemDefined = 14 # hidsystem/ev_keymap.h NX_KEYTYPE_SOUND_UP = 0 NX_KEYTYPE_SOUND_DOWN = 1 NX_KEYTYPE_PLAY = 16 NX_KEYTYPE_NEXT = 17 NX_KEYTYPE_PREVIOUS = 18 NX_KEYTYPE_FAST = 19 NX_KEYTYPE_REWIND = 20 def HIDPostAuxKey(key): def doKey(down): ev = Quartz.NSEvent