public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    final Button button = new Button(shell, SWT.NONE);
    button.setSize(100, 100);
    button.setText("Click");
    shell.pack();
    shell.open();
    button.addListener(
        SWT.MouseDown,
        new Listener() {
          @Override
          public void handleEvent(Event e) {
            System.out.println(
                "Mouse Down (button: " + e.button + " x: " + e.x + " y: " + e.y + ")");
          }
        });
    final Point pt = display.map(shell, null, 50, 50);
    new Thread() {
      Event event;

      @Override
      public void run() {
        try {
          Thread.sleep(300);
        } catch (InterruptedException e) {
        }
        event = new Event();
        event.type = SWT.MouseMove;
        event.x = pt.x;
        event.y = pt.y;
        display.post(event);
        try {
          Thread.sleep(300);
        } catch (InterruptedException e) {
        }
        event.type = SWT.MouseDown;
        event.button = 1;
        display.post(event);
        try {
          Thread.sleep(300);
        } catch (InterruptedException e) {
        }
        event.type = SWT.MouseUp;
        display.post(event);
      }
    }.start();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    display.dispose();
  }
 public static void buttonTab() {
   TabItem tab = new TabItem(folder, SWT.CLOSE);
   tab.setText("Buttons");
   tab.setToolTipText("Different kinds of Buttons");
   Composite composite = new Composite(folder, SWT.NONE);
   composite.setLayout(new GridLayout(4, true));
   for (int dir : new int[] {SWT.UP, SWT.RIGHT, SWT.LEFT, SWT.DOWN}) {
     Button b = new Button(composite, SWT.ARROW | dir);
     b.addListener(SWT.MouseDown, listener);
   }
   newButton(composite, SWT.CHECK, "Check button");
   newButton(composite, SWT.PUSH, "Push button");
   newButton(composite, SWT.RADIO, "Radio button");
   newButton(composite, SWT.TOGGLE, "Toggle button");
   newButton(composite, SWT.FLAT, "Flat button");
   tab.setControl(composite);
 }
 public static void directoryDialogTab() {
   TabItem tab = new TabItem(folder, SWT.CLOSE);
   tab.setText("Directory Dialog");
   tab.setToolTipText("Select a directory");
   final Button b = new Button(folder, SWT.PUSH);
   b.setText("Select a Directory");
   b.addListener(
       SWT.MouseDown,
       new Listener() {
         public void handleEvent(Event e) {
           DirectoryDialog dd = new DirectoryDialog(shell);
           String path = dd.open();
           if (path != null) b.setText(path);
         }
       });
   tab.setControl(b);
 }
  public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setText("Widget");

    final Table table = new Table(shell, SWT.MULTI);
    table.setLinesVisible(true);
    table.setBounds(10, 10, 100, 100);
    for (int i = 0; i < 9; i++) {
      new TableItem(table, SWT.NONE).setText("item" + i);
    }

    Button button = new Button(shell, SWT.PUSH);
    button.setText("Capture");
    button.pack();
    button.setLocation(10, 140);
    button.addListener(
        SWT.Selection,
        event -> {
          Point tableSize = table.getSize();
          GC gc = new GC(table);
          final Image image = new Image(display, tableSize.x, tableSize.y);
          gc.copyArea(image, 0, 0);
          gc.dispose();

          Shell popup = new Shell(shell);
          popup.setText("Image");
          popup.addListener(SWT.Close, e -> image.dispose());

          Canvas canvas = new Canvas(popup, SWT.NONE);
          canvas.setBounds(10, 10, tableSize.x + 10, tableSize.y + 10);
          canvas.addPaintListener(e -> e.gc.drawImage(image, 0, 0));
          popup.pack();
          popup.open();
        });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    display.dispose();
  }
  public static void main(String[] args) {
    final Display display = new Display();
    // Shell must be created with style SWT.NO_TRIM
    final Shell shell = new Shell(display, SWT.NO_TRIM | SWT.ON_TOP);
    shell.setBackground(display.getSystemColor(SWT.COLOR_RED));
    // define a region that looks like a key hole
    Region region = new Region();
    region.add(circle(67, 67, 67));
    region.subtract(circle(20, 67, 50));
    region.subtract(new int[] {67, 50, 55, 105, 79, 105});
    // define the shape of the shell using setRegion
    shell.setRegion(region);
    Rectangle size = region.getBounds();
    shell.setSize(size.width, size.height);
    // add ability to move shell around
    Listener l =
        new Listener() {
          /** The x/y of the MouseDown, relative to top-left of the shell. */
          Point origin;

          @Override
          public void handleEvent(Event e) {
            switch (e.type) {
              case SWT.MouseDown:
                Point point = shell.toDisplay(e.x, e.y);
                Point loc = shell.getLocation();
                origin = new Point(point.x - loc.x, point.y - loc.y);
                break;
              case SWT.MouseUp:
                origin = null;
                break;
              case SWT.MouseMove:
                if (origin != null) {
                  Point p = display.map(shell, null, e.x, e.y);
                  shell.setLocation(p.x - origin.x, p.y - origin.y);
                }
                break;
            }
          }
        };
    shell.addListener(SWT.MouseDown, l);
    shell.addListener(SWT.MouseUp, l);
    shell.addListener(SWT.MouseMove, l);
    // add ability to close shell
    Button b = new Button(shell, SWT.PUSH);
    b.setBackground(shell.getBackground());
    b.setText("close");
    b.pack();
    b.setLocation(10, 68);
    b.addListener(
        SWT.Selection,
        new Listener() {
          @Override
          public void handleEvent(Event e) {
            shell.close();
          }
        });
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    region.dispose();
    display.dispose();
  }
 private static void newButton(Composite composite, int type, String label) {
   Button b = new Button(composite, type);
   b.setText(label);
   b.addListener(SWT.MouseDown, listener);
 }
  public static void main(String[] args) {
    final Display display = new Display();
    final Clipboard clipboard = new Clipboard(display);
    final Shell shell = new Shell(display, SWT.SHELL_TRIM);
    shell.setLayout(new GridLayout());
    shell.setText("Clipboard ImageTransfer");

    final Button imageButton = new Button(shell, SWT.NONE);
    GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
    gd.minimumHeight = 400;
    gd.minimumWidth = 600;
    imageButton.setLayoutData(gd);

    final Text imageText = new Text(shell, SWT.BORDER);
    imageText.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));

    Composite buttons = new Composite(shell, SWT.NONE);
    buttons.setLayout(new GridLayout(4, true));
    Button button = new Button(buttons, SWT.PUSH);
    button.setText("Open");
    button.addListener(
        SWT.Selection,
        event -> {
          FileDialog dialog = new FileDialog(shell, SWT.OPEN);
          dialog.setText("Open an image file or cancel");
          String string = dialog.open();
          if (string != null) {
            imageButton.setText("");
            Image image = imageButton.getImage();
            if (image != null) image.dispose();
            image = new Image(display, string);
            imageButton.setImage(image);
            imageText.setText(string);
          }
        });

    button = new Button(buttons, SWT.PUSH);
    button.setText("Copy");
    button.addListener(
        SWT.Selection,
        event -> {
          Image image = imageButton.getImage();
          if (image != null) {
            ImageTransfer imageTransfer = ImageTransfer.getInstance();
            TextTransfer textTransfer = TextTransfer.getInstance();
            clipboard.setContents(
                new Object[] {image.getImageData(), imageText.getText()},
                new Transfer[] {imageTransfer, textTransfer});
          }
        });

    button = new Button(buttons, SWT.PUSH);
    button.setText("Paste");
    button.addListener(
        SWT.Selection,
        event -> {
          ImageData imageData = (ImageData) clipboard.getContents(ImageTransfer.getInstance());
          if (imageData != null) {
            imageButton.setText("");
            Image image = imageButton.getImage();
            if (image != null) image.dispose();
            image = new Image(display, imageData);
            imageButton.setImage(image);
          } else {
            imageButton.setText("No image");
            imageButton.setImage(null);
          }
          String text = (String) clipboard.getContents(TextTransfer.getInstance());
          if (text != null) {
            imageText.setText(text);
          } else {
            imageText.setText("");
          }
        });

    button = new Button(buttons, SWT.PUSH);
    button.setText("Clear");
    button.addListener(
        SWT.Selection,
        event -> {
          imageButton.setText("");
          Image image = imageButton.getImage();
          if (image != null) image.dispose();
          imageButton.setImage(null);
          imageText.setText("");
        });

    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    display.dispose();
  }