如何在GTK+中隐藏.ui文件和显示另一个.ui文件

#include <gtk/gtk.h>

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

    gtk_init(&argc, &argv);

    // 创建主界面
    builder = gtk_builder_new_from_file("main.ui");
    window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
    button = GTK_WIDGET(gtk_builder_get_object(builder, "button"));

    // 隐藏.ui文件
    // gtk_widget_hide(button);

    // 显示另一个.ui文件
    GtkBuilder *anotherBuilder = gtk_builder_new_from_file("another.ui");
    GtkWidget *anotherWindow = GTK_WIDGET(gtk_builder_get_object(anotherBuilder, "window"));
    gtk_widget_show_all(anotherWindow);

    gtk_main();

    return 0;
}