public class SimpleCanvas {

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

		Canvas canvas = new Canvas(shell, SWT.BORDER | SWT.V_SCROLL );
		canvas.setLayoutData(new GridData(GridData.FILL_BOTH));

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