SDL窗口嵌入到Qt窗口中

参考链接：

https://blog.youkuaiyun.com/qq_44825209/article/details/132419207

https://www.cnblogs.com/lifan3a/articles/7464106.html

https://avmedia.0voice.com/?id=41915

https://blog.youkuaiyun.com/weixin_38890593/article/details/97280444

https://www.cnblogs.com/KaiMing-Prince/p/8874914.html

https://blog.youkuaiyun.com/weixin_46028171/article/details/134967027