SWT Tray Demo: Right-click menu, click Hide, examples of all events

Menu
SWT's system tray can handle only three kinds of events: left-click, double-click and right-click, right click this is what I see SWT 3.0.1 Win32 Source code known this demo has the following functions: 1. When left click, Hide, Show main Window 2. Right-click, pop-up menu Note: 1. Double-click and right-click is an event that cannot differentiate between 2. The left-click double-click will produce the following event: left-clicking, double-click, left-click 3. For pop-up menus, menu must have a parent, and if there is no shell in the program, You can build an invisible shell specifically as the parent of the menu.

Import Org.eclipse.swt.*;import Org.eclipse.swt.widgets.*;import Org.eclipse.swt.events.*;import Org.eclipse.swt.layout.filllayout;import Org.eclipse.swt.graphics.image;class HelloTray Implements Selectionlistener{display Display; Shell Shell; Button Hello; Tray Tray; Trayitem ti; Menu menu; MenuItem Mi1; MenuItem mi2; MenuItem quit;public Hellotray () {display = Display.getdefault (); shell = new Shell (); Filllayout filllayout = new Filllayout (); filllayout.type = SWT. Vertical;shell.setlayout (filllayout); hello = new Button (Shell, SWT. NONE); Hello.settext ("Hello world!");    Hello.addselectionlistener (New Selectionadapter () {public void widgetselected (Selectionevent e) {        if (Hello.gettext (). Equals ("Hello world!"))          hello.settext ("clicked");       else         hello.settext ("Hello world!");}); Menu=new Menu (shell); mi1=new MenuItem (MENU,SWT. PUSH); Mi1.settext ("MenuItem 1"); Mi1.addselectionlistener (this); Mi2=new MenuItem (MENU,SWT. PUSH); Mi2.settext ("MenuItem 2"); Mi2.addselectionlistener (this); Quit=new MenuItem (MENU,SWT. PUSH); Quit.settext ("Quit"); Quit.addselectionlistener (this);//Generate SWT Traytray=display.getsystemtray (); ti=new Trayitem (tray,0); Ti.settooltiptext ("This is a SWT tray!"); Ti.setimage (New Image (Display, "E:\\my documents\\my pictures\\alm.gif");//swt,tray All events: Ti.addselectionlistener ( New Selectionlistener () {//Left click public void widgetselected (Selectionevent e) {System.out.println ("Tray selcted"); When left click, Hide, Show main window if (shell.isvisible ()) {shell.setvisible (false);} Else{shell.setvisible (True); Shell.forceactive ();}} Left-click, right-click, it is public void widgetdefaultselected (Selectionevent e) {System.out.println ("Tray widgetdefaultselected" );}});/ /Right-click, pop-up menu Ti.addlistener (SWT. Menudetect,new Listener () {public void Handleevent (event event) {System.out.println ("SWT. Menudetect "); Menu.setlocation (Display.getcursorlocation ());        menu.setvisible (True);}); public void Start () {Shell.open (), while (!shell.isdisposed ()) {if (!display.readanddispatch ()) Display.sleep ();} Display.dispose ();} public static void Main (string[] args) {Hellotray app=new hellotray (); App.start ();} public void widgetselected (Selectionevent e) {System.out.println (E.getsource () + "selected."); if (E.getsource () ==quit) {System.out.println ("quit");d Isplay.dispose (); System.exit (0);}} public void widgetdefaultselected (Selectionevent e) {}}