java - How to perform Key Listener on SWT Label -

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keylistener not performed on label. please one? below code snippet:

breaknodelabel = new label(this, swt.wrap); breaknodelabel.setbackground(new color(getdisplay(), 204, 204, 204)); breaknodelabel.addkeylistener(new keyadapter() {     @override     public void keypressed(keyevent event) {     if (event.keycode == swt.del) {         // deletenode(this);         system.out.println("------------delete break node----------------");     }     } });

you've added keylistener label. label must have focus events.

if want listen keyboard events in whole window add keylistener shell:

shell.addkeylistener(new keyadapter()...

if want global keylistener add display filter:

listener listener = new listener() {      @override     public void handleevent(event e) {         if(e.type == swt.keydown||e.type == swt.keyup) {             system.out.println("" + e.keycode);         }     } }; display.addfilter(swt.keydown, listener); display.addfilter(swt.keyup, listener);

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