This is a Qt-c++ project build with visual sdudio, you can see solution file here. It may help you learn how to make a middle Qt project. It could work corretly, though the construct of project is't such beautiful.

在线围棋游戏，使用Qt C++编写，包含用户端和服务端。界面基于QtWidget, 通信基于Socket(udp)。功能包括注册、登录、匹配、对战、聊天等。 项目链接：https://github.com/williamtuw/go-online