new Shell(Shell parent)
import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class MainClass { public static void main(String[] a) { Display d = new Display(); Shell s = new Shell(d); s.setSize(500,500); s.open(); ChildShell cs = new ChildShell(s); while(!s.isDisposed()){ if(!d.readAndDispatch()) d.sleep(); } d.dispose(); } } class ChildShell { ChildShell(Shell parent){ Shell child = new Shell(parent); child.setSize(200,200); child.open(); } }