linux lcd 多窗口编程

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

int main() {
    Display *display = XOpenDisplay(NULL);
    if (!display) {
        fprintf(stderr, "Cannot open display\n");
        return 1;
    }

    int screen = DefaultScreen(display);
    Window root = RootWindow(display, screen);

    // 创建第一个窗口
    Window win1 = XCreateSimpleWindow(display, root, 10, 10, 200, 200, 1,
                                      BlackPixel(display, screen), WhitePixel(display, screen));
    XSelectInput(display, win1, ExposureMask | KeyPressMask);
    XMapWindow(display, win1);

    // 创建第二个窗口
    Window win2 = XCreateSimpleWindow(display, root, 220, 10, 200, 200, 1,
                                      BlackPixel(display, screen), WhitePixel(display, screen));
    XSelectInput(display, win2, ExposureMask | KeyPressMask);
    XMapWindow(display, win2);

    XFlush(display);

    // 事件循环
    XEvent event;
    while (1) {
        XNextEvent(display, &event);
        if (event.type == Expose) {
            // 处理窗口暴露事件
        } else if (event.type == KeyPress) {
            // 处理键盘按下事件
            break;
        }
    }

    XCloseDisplay(display);
    return 0;
}