private void fullscreenBtn_Click(object sender, EventArgs e)
        {
            var princoneHwnd = Win32Wrapper.GetWindowHandle(PRICONNE_WND_CLASS, PRICONNE_WND_NAME);

            if ((int)princoneHwnd == 0)
            {
                MessageBox.Show(MSG_MESSAGE_START_GAME_FIST, MSG_TITLE_START_GAME_FIRST, MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }

            if (Win32Wrapper.CheckWindowIsFullScreen(princoneHwnd))
            {
                MessageBox.Show(MSG_MESSAGE_ALREADY_FULLSCREEN, MSG_TITLE_ALREADY_FULLSCREEN, MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }

            Win32Wrapper.FullScreenWindow(princoneHwnd);
        }