问带有弹出菜单的GTK3 C菜单按钮示例代码(仅使用.c，不使用.ui)

EN

#include <gtk/gtk.h>

int main(int argc, char *argv[]) 
{

    GtkWidget *window;


    gtk_init(&argc, &argv);
    //Create window
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
    gtk_window_set_default_size(GTK_WINDOW(window), 300, 200);
    gtk_window_set_title(GTK_WINDOW(window), "Simple menu");


    //Creating fixed container
    GtkWidget *fixedContainer = gtk_fixed_new ();
    gtk_container_add(GTK_CONTAINER(window), fixedContainer);

    //Creating and adding new menu button in fixed container
    GtkWidget *testMenuButton = gtk_menu_button_new ();
    gtk_fixed_put (GTK_FIXED(fixedContainer), testMenuButton, 50, 50);

    //Adding popover to menu button
    GtkWidget *testPopOver = gtk_popover_new (testMenuButton);

    //Creating GTK_BOX to hold popover box contents
    GtkWidget *testBox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);

    //Creating and adding new button in testBox
    GtkWidget *testButton = gtk_button_new ();
    gtk_box_pack_start(GTK_BOX(testBox), testButton, TRUE, TRUE, 5);

    //How to add testBox to testPopOver?









    g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(gtk_main_quit), NULL);
    gtk_widget_show_all(window);
    gtk_main();

    return 0;
}