Atitit. The form listens to esc to exit the form java swing c #. net php,

Atitit. The form listens to esc to exit the form java swing c #. net php,

Atitit. Form listening to esc exit this form java swing c #. net php

 

1. Listen to esc key 1

1.1. Listen to a component 1

1.2. Add the listener to form 1

2. Close Form 2

 

1. Listen to esc buttons

 

1.1. Listen to a component 1.2. Listen to the form

 

Author: old wow's paw Attilax iron, EMAIL: 1466519819@qq.com

Reprinted please indicate Source: http://blog.csdn.net/attilax

 

 

Final Toolkit toolkit = Toolkit. getdefatooltoolkit ();

Toolkit. addAWTEventListener (new AWTEventListener (){

@ Override public void eventDispatched (AWTEvent e ){

If (e. getID () = KeyEvent. KEY_PRESSED ){

KeyEvent evt = (KeyEvent) e;

If (evt. getKeyCode () = KeyEvent. VK_ESCAPE ){

Frame. dispose ();

System. exit (0 );

}

}

}

}, AWTEvent. KEY_EVENT_MASK );

 

 

Java code
Toolkit. getdefatooltoolkit (). addAWTEventListener (new AWTEventListener (){
.............
});

This approach is best. All events are monitored. No matter which componet, button, form, etc ..

 

This does not work, and may focus on a component .. 3. This only event is bound to frm ..

// Frame. addKeyListener (new KeyAdapter (){

// @ Override

// Public void keyPressed (KeyEvent e ){

// If (KeyEvent. VK_ESCAPE = e. getKeyCode ()){

/// System. exit (0 );

// System. out. println ("--- colose ...");

// Frame. dispose ();

//}

//}

//});

 

 

2. Close the form

 

Set this. setdefaclocloseoperation (DISPOSE_ON_CLOSE); in each Frame.

EXIT_ON_CLOSE: Close the program. (All windows and processes are closed)

DISPOSE_ON_CLOSE: close this window only.

HIDE_ON_CLOSE: only hide this window, not close.

DO_NOTHING_ON_CLOSE: Do not do anything. it is invalid to click Close.

 

You only need to call the dispose method. Hidden is setVisible (false ). The program to close is System. exit (0 );

 

Frame. setdefaclocloseoperation (javax. swing. WindowConstants. DISPOSE_ON_CLOSE );

If (evt. getKeyCode () = KeyEvent. VK_ESCAPE ){

Frame. dispose ();

// System. exit (0 );

}

 

 

Reference

Javaexample: Use a volume to close a jframe_baidu channel. htm