如何在C中用SDL调用鼠标点击的函数？

#include <SDL.h>

SDL_Init(SDL_INIT_VIDEO);

SDL_Window* window = SDL_CreateWindow("Mouse Click", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 800, 600, SDL_WINDOW_SHOWN);
SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, 0);

SDL_Event event;
int quit = 0;

while (!quit) {
    while (SDL_PollEvent(&event)) {
        if (event.type == SDL_QUIT) {
            quit = 1;
        }
        else if (event.type == SDL_MOUSEBUTTONDOWN) {
            if (event.button.button == SDL_BUTTON_LEFT) {
                int x = event.button.x;
                int y = event.button.y;
                printf("Left mouse button clicked at (%d, %d)\n", x, y);
            }
        }
    }
}

SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();