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  1. 01-09-2008, 03:19 AM #1
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    rpwtdj
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    Question How to add hotkey(Ctrl+VK) to a button?

    Hi buddies,
    I've added a button to a panel, and used
    Java Code: 
    setMnemonic(KeyEvent.VK_R)
    to set a hotkey Alt+R for triggering the button event.
    However, the requirement is changed, now, I need to use 'Ctrl+R' as the
    hotkey for the button.
    Will you please give me some hit on this?
    Thanks!
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  2. 01-09-2008, 05:06 AM #2
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    hardwired
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    Java Code: 
    import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Test {
    public static void main(String[] args) {
        JButton button = new JButton();
        button.setAction(new AbstractAction("press me") {
            {
                putValue(Action.ACTION_COMMAND_KEY, getValue(Action.NAME));
            }
            public void actionPerformed(ActionEvent e) {
                System.out.println(e.getActionCommand());
            }
        });
        JPanel panel = new JPanel();
        panel.add(button);
        panel.setPreferredSize(new Dimension(200,100));
        // Bind a keystroke to the button to act as accelerator.
        int c = JComponent.WHEN_IN_FOCUSED_WINDOW;
        KeyStroke ks = KeyStroke.getKeyStroke(KeyEvent.VK_R,
                                    InputEvent.CTRL_DOWN_MASK);
        panel.getInputMap(c).put(ks, "PRESS");
        panel.getActionMap().put("PRESS", button.getAction());
        JOptionPane.showMessageDialog(null, panel,"", -1);
    }
}
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  3. 01-09-2008, 07:28 AM #3
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    rpwtdj
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    Thank you hardwired.
    Great help.
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  4. 01-09-2008, 08:09 AM #4
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    rpwtdj
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    Default

    How can I make the 'r' in "press me" underlined?
    so that the button will look like "press me"
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  5. 01-10-2008, 12:58 AM #5
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    hardwired
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    Swing labels support primitive html 3.2:
    Java Code: 
            String s = "<html>p<u>r</u>ess me";
        button.setAction(new AbstractAction(s) {
            {
                putValue(Action.ACTION_COMMAND_KEY, "press me");
            }
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  6. 01-10-2008, 02:13 AM #6
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    rpwtdj
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    That would be great!
    Thank you
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