cbType.add( "Call Back" );
	public static void main( String[] args )	{		Display display = Display.getDefault( );		Shell shell = new Shell( display );		shell.setSize( 600, 400 );		shell.setLayout( new GridLayout( ) );		SwtInteractivityViewer siv = new SwtInteractivityViewer( shell,				SWT.NO_BACKGROUND );		siv.setLayoutData( new GridData( GridData.FILL_BOTH ) );		siv.addPaintListener( siv );		Composite cBottom = new Composite( shell, SWT.NONE );		cBottom.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );		cBottom.setLayout( new RowLayout( ) );		Label la = new Label( cBottom, SWT.NONE );		la.setText( "Choose: " );//$NON-NLS-1$		cbType = new Combo( cBottom, SWT.DROP_DOWN | SWT.READ_ONLY );		cbType.add( "Highlight Series" );//$NON-NLS-1$		cbType.add( "Show Tooltip" );//$NON-NLS-1$		cbType.add( "Toggle Visibility" );//$NON-NLS-1$		cbType.add( "URL Redirect" );//$NON-NLS-1$		cbType.select( 0 );		btn = new Button( cBottom, SWT.NONE );		btn.setText( "Update" );//$NON-NLS-1$		btn.addSelectionListener( siv );		shell.open( );		while ( !shell.isDisposed( ) )		{			if ( !display.readAndDispatch( ) )				display.sleep( );		}		display.dispose( );	}