Get event type : SWT Event « SWT « Java Tutorial

Get event type
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class EventTypeGet {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new GridLayout());

    Button button = new Button(shell, SWT.NONE);
    button.setText("Click and check the console");
    button.addListener(SWT.Selection, new Listener() {
      public void handleEvent(Event e) {
        switch (e.type) {
        case SWT.Selection:
          System.out.println("Button pressed");
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
  public static String getEventName(int eventType) {
    switch(eventType) {
      case SWT.None:
        return "null";
      case SWT.KeyDown:
        return "key down";
      case SWT.KeyUp:
        return "key up";
      case SWT.MouseDown:
        return "mouse down";
      case SWT.MouseUp:
        return "mouse up";
      case SWT.MouseMove:
        return "mouse move";
      case SWT.MouseEnter:
        return "mouse enter";
      case SWT.MouseExit:
        return "mouse exit";
      case SWT.MouseDoubleClick:
        return "mouse double click";
      case SWT.Paint:
        return "paint";
      case SWT.Move:
        return "move";
      case SWT.Resize:
        return "resize";
      case SWT.Dispose:
        return "dispose";
      case SWT.Selection:
        return "selection";
      case SWT.DefaultSelection:
        return "default selection";
      case SWT.FocusIn:
        return "focus in";
      case SWT.FocusOut:
        return "focus out";
      case SWT.Expand:
        return "expand";
      case SWT.Collapse:
        return "collapse";
      case SWT.Iconify:
        return "iconify";
      case SWT.Deiconify:
        return "deiconify";
      case SWT.Close:
        return "close";
      case SWT.Show:
        return "show";
      case SWT.Hide:
        return "hide";
      case SWT.Modify:
        return "modify";
      case SWT.Verify:
        return "verify";
      case SWT.Activate:
        return "activate";
      case SWT.Deactivate:
        return "deactivate";
      case SWT.Help:
        return "help";
      case SWT.DragDetect:
        return "drag detect";
      case SWT.Arm:
        return "arm";
      case SWT.Traverse:
        return "traverse";
      case SWT.MouseHover:
        return "mouse hover";
      case SWT.HardKeyDown:
        return "hard key down";
      case SWT.HardKeyUp:
        return "hard key up";
      case SWT.MenuDetect:
        return "menu detect";
    return "unkown ???";


17.89.SWT Event
17.89.2.The Event ModelThe Event Model
17.89.3.The listener notification processThe listener notification process
17.89.4.SWT provides two kinds of event listening mechanism: typed and untyped.SWT provides two kinds of event listening mechanism: typed and untyped.
17.89.5.Untyped Events and Untyped Event ListenersUntyped Events and Untyped Event Listeners
17.89.6.Introducing Untyped Listeners
17.89.7.Get event typeGet event type
17.89.8.implements general Event Listenerimplements general Event Listener
17.89.9.Introducing Typed Listeners
17.89.10.Typed Listeners
17.89.11.SWT Message Keys and Values
17.89.12.Using SelectionListenerUsing SelectionListener
17.89.13.Add Resize listener to ShellAdd Resize listener to Shell
17.89.14.Add addPaintListener to CompositeAdd addPaintListener to Composite
17.89.15.Add default selection listener to ComboAdd default selection listener to Combo
17.89.16.Using HelpListenerUsing HelpListener
17.89.17.Demonstrate DisposeListener which is notified on the associated widget's disposal
17.89.18.Using ControlListenerUsing ControlListener
17.89.19.Using FocusListenerUsing FocusListener
17.89.20.Using VerifyListenerUsing VerifyListener
17.89.21.Using ModifyListenerUsing ModifyListener
17.89.22.Adding AccessibleListenerAdding AccessibleListener
17.89.23.Adding AccessibleControlListenerAdding AccessibleControlListener
17.89.24.Add and remove filter listenersAdd and remove filter listeners