Java tutorial
import org.eclipse.swt.SWT; import org.eclipse.swt.events.PaintEvent; import org.eclipse.swt.events.PaintListener; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Canvas; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class DrawArcSWT { public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setText("Canvas Example"); shell.setLayout(new FillLayout()); Canvas canvas = new Canvas(shell, SWT.NONE); canvas.addPaintListener(new PaintListener() { public void paintControl(PaintEvent e) { e.gc.setBackground(e.display.getSystemColor(SWT.COLOR_BLACK)); e.gc.fillArc(200, 100, 500, 400, 30, 40); } }); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) { display.sleep(); } } display.dispose(); } }