How can I get key combination of keys on keyboard E.G. (Ctrl+somekey, Alt+somekey) with Java?
I use KeyEvent
listener, MouseEvent
listener for all keys on keyboard. I can catch all key event on keyboard by using that listener. But, I cannot catch key combination such as (Ctrl+Alt+Del)....etc.
public void keyPressed(KeyEvent kevt) {
if(kevt.getKeyChar()=='c') {
if(kevt.isAltDown())
//Code if Alt+c pressed
if(kevt.isControlDown())
//Code if Ctrl+c pressed
if(kevt.isShiftDown())
//Code if Shift+c pressed
if(kevt.isAltDown()&&kevt.isControlDown()&&(!kevt.isShiftDown()))
//Code if Alt+Ctrl+c pressed
if(kevt.isAltDown()&&kevt.isShiftDown()&&(!kevt.isControlDown()))
//Code if Alt+Shift+c pressed
if(!(kevt.isAltDown())&&kevt.isControlDown()&&(kevt.isShiftDown()))
//Code if Shift+Ctrl+c pressed
if(kevt.isAltDown()&&kevt.isControlDown()&&kevt.isShiftDown())
//Code if Alt+Ctrl+Shift+c pressed
}
Use the above code, use any character If you want to check if Alt+C+E is pressed do the following
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.swing.*;
public class Sample implements KeyListener {
private JTextField lbl=new JLabel("Hello");
private JPanel pnl=new JPanel(new BorderLayout());
private JFrame frm=new JFrame ("Sample");
int []arr;int i=0;
public Sample() {
pnl.add("North", lbl);
frm.setContentPane(pnl);
frm.pack();
frm.setVisible(true);
lbl.addKeyListener(this);
arr= new int[3];
public void keyPressed(KeyEvent key) {
arr[i]=key.getKeyCode();
i++;
if((arr[0]==VK_ALT||arr[1]==VK_ALT||arr[2]==VK_ALT)&& (arr[0]==VK_C||arr[1]==VK_C||arr[2]==VK_C)&&(arr[0]==VK_E||arr[1]==VK_E||arr[2]==VK_E)) {
//Code you want
}
}
public void keyReleased(KeyEvent evt) {
arr[i]=null;
}
public void keyTyped(KeyEvent kvt) {
}
}
}