有人可以解释在 Pebble C Watchface 教程中找到的部分代码吗？

Question

我正在查看此处的 Pebble C 表盘教程 https://developer.getpebble.com/tutorials/watchface-tutorial/part1

有问题的部分代码在这里：

static void init() {
  // Create main Window element and assign to pointer
  s_main_window = window_create();

  // Set handlers to manage the elements inside the Window
  window_set_window_handlers(s_main_window, (WindowHandlers) {
    .load = main_window_load,
    .unload = main_window_unload
  });

  // Show the Window on the watch, with animated=true
  window_stack_push(s_main_window, true);
}

window_set_window_handlers是函数声明和调用吗？ C 中 .load 和 .unload shorthand 表示法的术语是什么？

如果有人可以解释该代码片段，将不胜感激，谢谢。

Answer 1

叫做Designated Initializers. The struct WindowHandlers is created and initialized inline before being passed to the function call of window_set_window_handlers。