key-bindings

Ok, so what i want is the rectangle to always be moving, but when you press the left and right arrow is changes the direction by either increasing or decreasing the angle. With this code the sqaure moves as it should in the correct direction, but when i press the keys the direction does not change. import java.awt.*; import java.awt.Color; import javax.swing.Timer; import javax.swing.*; import java.awt.Graphics; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.awt.event.KeyListener; import java.awt.event.KeyEvent; import java.awt.event.KeyAdapter; public

Possible Duplicate: Comparing functionality between KeyListeners and Key Bindings I've been trying to use the KeyListener in my program in order to get the input for constructing a number. It doesn't work as far as I can tell even though i've fully implemented it but thats not the question :P. Anyway, I searched the internet in order to see if I was doing something wrong and came across Keybindings which are apparently made to work with swing components as opposed to KeyListeners. Which would be better for just getting the input from the number keys? The Keylistener is an older interface from

The MenuItem control has the convenient property IsEnabled (inherited from UIElement ). This allows me to, when appropriate, hide the command exposed by that menu option. But if that command is also bound to a key (e.g. Ctrl+K), the user can still access it. How do I get the IsEnabled functionality to a KeyBinding ? If you bind the KeyBinding to an ICommand , you can just set the ICommand.CanExecute to false (and potentially raise CanExecuteChanged ). This will "disable" the KeyBinding since the command itself will be disabled. 来源： https://stackoverflow.com/questions/15706070/c-sharp-how-to

I'd like to add a custom arrow key listener for my JTextField . But looks like the arrow keys are bound to the JScrollPane on which I put my text field. How do I unbind them? You could try replacing the key bindings on the scroll pane, but it might make sense to keep them to allow the user to scroll the pane when they are not focused in your text field. Instead, you can add key bindings to the text field that do nothing, which will consume the event and prevent them from begin sent to the scroll pane, for example.... import java.awt.BorderLayout; import java.awt.Dimension; import java.awt

I will print related info if users focus on current window and press a key. However, it works for some keys like 'a' but not for 'tab'. Here is a simple demo: import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.KeyEvent; import javax.swing.AbstractAction; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.KeyStroke; public class KeyBindingTest { public static void main(String[] args) { KeyBindingTest test = new KeyBindingTest(); test.createUI(); } public void createUI(){ JFrame frame = new JFrame("KeyBinding

I want to make a program with these goals: 1) Make a JButton 2) Attach the button to a key (The "A" Key) using KeyBindings 3) Execute some code when "A" is clicked Here is the code I have so far: // Imports Public class Test{ JButton button = new JButton(); //... Test(){ button.getInputMap().put(KeyStroke.getKeyStroke("A"), "Pressed"); //... } // Where do I add the code that responds when button is pressed? } Now where do I add the code that I want it to execute when the button is pressed? you need to add an action listener, specificaly for actionPerformed. declare this somewhere inside your

I'm trying to add to the emacs-like key bindings in OS X 10.7.5. In particular, in the default key bindings, alt-d and alt-b insert special characters, while I would like them to delete a word and move back a word. I've created a file ~\Library\KeyBindings\DefaultKeyBinding.dict with the following content: { "~d" = "deleteWordForward:"; } (as suggested in the answers to this question ) and opened a new terminal window (I tried rebooting, too) but now the alt-d combination just beeps at me, and does nothing else. Any clues? lawlist This should do the trick -- within the Terminal.app Keyboard

I'm having problems with getting my KeyBoardFocusManger to work with my full screen Window . No matter what, it just wont get keyboard input. I used a System.exit(0) and a println() to look for any call to the keypressed/released/typed method, but no errors are thrown. I've tried KeyListeners ; but after I read this , I changed to a KeyboardFocusManager , and the same thing still happens. I'm really getting desperate; from what I can judge, the Window is not getting focus of the keyboard? Here is my main: public static void main(String[] args) { EventQueue.invokeLater(new Runnable() {

I am working on a project and I want to set Mnemonic on buttons. But the problem is Mnemonic works on pairing key example ( Alt + F ) etc. But I want it to be on single key. mKorbel have look at KeyBindings, then you can to attach any Key to the JButton Here is one example code for your help, just Press C on the Keyboard : import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.Action; public class ButtonExample { private JFrame frame; private JButton button; private void displayGUI() { frame = new JFrame("Button Mnemonic Example"); frame.setDefaultCloseOperation