SDL_WINDOWEVENT_RESIZED与SDL_WINDOWEVENT_SIZE_CHANGED的区别

Question

在SDL中，这两个窗口事件有什么区别？

SDL_WINDOWEVENT_RESIZED
SDL_WINDOWEVENT_SIZE_CHANGED

在维基文档页面中，有这个代码示例：

    case SDL_WINDOWEVENT_RESIZED:
        SDL_Log("Window %d resized to %dx%d",
                event->window.windowID, event->window.data1,
                event->window.data2);
        break;
    case SDL_WINDOWEVENT_SIZE_CHANGED:
        SDL_Log("Window %d size changed to %dx%d",
                event->window.windowID, event->window.data1,
                event->window.data2);
        break;

但我看不出区别。

- tuket

Answer 1

来自SDL Wiki：

SDL_WINDOWEVENT_RESIZED

窗口大小已调整为data1 x data2; 此事件始终在SDL_WINDOWEVENT_SIZE_CHANGED之前发生

SDL_WINDOWEVENT_SIZE_CHANGED

窗口大小已更改，可能是由API调用或系统或用户更改窗口大小引起的；如果大小是由外部事件更改的，即用户或窗口管理器，则此事件后跟SDL_WINDOWEVENT_RESIZED

- chqrlie