C++ SDL2.0中的SDL_ACTIVEEVENT等价物？

SDL2.0中是否有SDL_ACTIVEEVENT等价物？我们如何处理SDL_APPMOUSEFOCUS和SDL_APPINPUTFOCUS？

SDL2的：

• SDL\u APPMOUSEFOCUS

  映射到

  SDL\u WINDOWEVENT\u ENTER

  和

  SDL\u WINDOWEVENT\u LEAVE

• SDL\u APPINPUTFOCUS

  映射到获得的

  SDL\u WINDOWEVENT\u FOCUS

  和丢失的

  SDL\u WINDOWEVENT\u FOCUS