C:如何在gtk中制作上下文菜单

#include <gtk/gtk.h>

// 菜单项的回调函数
void menu_item_callback(GtkWidget *widget, gpointer data) {
    g_print("菜单项被选择\n");
}

int main(int argc, char *argv[]) {
    GtkWidget *window;
    GtkWidget *button;
    GtkWidget *menu;
    GtkWidget *menu_item;

    gtk_init(&argc, &argv);

    // 创建窗口
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title(GTK_WINDOW(window), "上下文菜单示例");
    gtk_container_set_border_width(GTK_CONTAINER(window), 10);
    gtk_widget_set_size_request(window, 200, 100);

    // 创建按钮
    button = gtk_button_new_with_label("右键点击我");
    gtk_container_add(GTK_CONTAINER(window), button);

    // 创建菜单
    menu = gtk_menu_new();

    // 创建菜单项
    menu_item = gtk_menu_item_new_with_label("菜单项");
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), menu_item);
    g_signal_connect(menu_item, "activate", G_CALLBACK(menu_item_callback), NULL);

    // 将菜单附加到按钮上
    gtk_menu_attach_to_widget(GTK_MENU(menu), button, NULL);

    // 显示窗口和按钮
    gtk_widget_show_all(window);

    gtk_main();

    return 0;
}