Call setText(), passing the desired text, to change what's displayed in the title bar.
Call setMessage(), passing your custom message, to change the message text.
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class DirectoryDialogTextMessage {
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
DirectoryDialog dlg = new DirectoryDialog(shell);
dlg.setText("My Text");
dlg.setMessage("My Message");
String selectedDirectory = dlg.open();
System.out.println(selectedDirectory);
display.dispose();
}
}