执行xeyes或xclock的c代码是什么？

sudo apt-get install libx11-dev

#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include<stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[]) {
    Display *display;
    Window window;
    GC gc;
    XEvent event;
    char *msg = "Hello, World!";
    int len, i;

    // 打开显示连接
    display = XOpenDisplay(NULL);
    if (display == NULL) {
        fprintf(stderr, "Cannot open display\n");
        exit(1);
    }

    // 创建窗口
    window = XCreateSimpleWindow(display, DefaultRootWindow(display), 10, 10, 200, 100, 1,
                                BlackPixel(display, DefaultScreen(display)),
                                WhitePixel(display, DefaultScreen(display)));

    // 设置窗口标题
    XStoreName(display, window, "Hello, World!");

    // 创建图形上下文
    gc = XCreateGC(display, window, 0, NULL);

    // 选择字体
    XFontStruct *font = XLoadQueryFont(display, "fixed");
    if (font != NULL) {
        XSetFont(display, gc, font->fid);
    }

    // 映射窗口
    XMapWindow(display, window);

    // 处理事件
    while (1) {
        XNextEvent(display, &event);
        if (event.type == Expose) {
            XClearWindow(display, window);
            len = strlen(msg);
            XDrawString(display, window, gc, 50 - (len * 5 / 2), 50, msg, len);
        } else if (event.type == KeyPress) {
            break;
        }
    }

    // 清理资源
    XFreeFont(display, font);
    XFreeGC(display, gc);
    XDestroyWindow(display, window);
    XCloseDisplay(display);

    return 0;
}

gcc -o hello hello.c -lX11