void quitGameMenuEntrySelected(object sender, PlayerIndexEventArgs e)
{
const string message = "Are you sure you want to quit?";
MessageBoxScreen confirmQuitMessageBox = new MessageBoxScreen(message);
confirmQuitMessageBox.Accepted += confirmQuitMessageBoxAccepted;
ScreenManager.AddScreen(confirmQuitMessageBox, ControllingPlayer);
}
// When the user cancels the main menu, ask if they want to exit.
protected override void OnCancel(PlayerIndex playerIndex)
{
const string message = "Are you sure you want to exit?";
MessageBoxScreen confirmExitMessageBox = new MessageBoxScreen(message);
confirmExitMessageBox.Accepted += confirmExitMessageBoxAccepted;
ScreenManager.AddScreen(confirmExitMessageBox, playerIndex);
}