c - SDL_WINDOWEVENT_RESIZED 与 SDL_WINDOWEVENT_SIZE_CHANGED

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 this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;

但我看不出有什么区别。

Answer 1

来自 the SDL Wiki :

SDL_WINDOWEVENT_RESIZED

window has been resized to data1 x data2; this event is always preceded by SDL_WINDOWEVENT_SIZE_CHANGED

SDL_WINDOWEVENT_SIZE_CHANGED

window size has changed, either as a result of an API call or through the system or user changing the window size; this event is followed by SDL_WINDOWEVENT_RESIZED if the size was changed by an external event, i.e. the user or the window manager