*
* @param wtl A listener whose setWindowTitle method is called whenever the Xremwin server notifies us
* that the title of the window has changed.
*/
private void startWindowManager(X11WindowManager.WindowTitleListener wtl) {
X11IntegrationModule nativeWinIntegration =
new X11IntegrationModule(displayName);
nativeWinIntegration.initialize(wtl);
wm = nativeWinIntegration.getWindowManager();
wm.addExitListener(this);
}