[代碼實例][gtk+]使用builder創建UI

builder.ui

<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.18.3 -->

<interface>
  <requires lib="gtk+" version="3.12"/>
  <object id="window" class="GtkWindow">
    <property name="visible">True</property>
    <property name="title">Grid</property>
    <property name="border-width">10</property>
    <child>
      <object id="grid" class="GtkGrid">
        <property name="visible">True</property>
        <child>
          <object id="button1" class="GtkButton">
            <property name="visible">True</property>
            <property name="label">Button 1</property>
          </object>
          <packing>
            <property name="left-attach">0</property>
            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object id="button2" class="GtkButton">
            <property name="visible">True</property>
            <property name="label">Button 2</property>
          </object>
          <packing>
            <property name="left-attach">1</property>
            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object id="quit" class="GtkButton">
            <property name="visible">True</property>
            <property name="label">Quit</property>
          </object>
          <packing>
            <property name="left-attach">0</property>
            <property name="top-attach">1</property>
            <property name="width">2</property>
          </packing>
        </child>
      </object>
      <packing>
      </packing>
    </child>
  </object>
</interface>

main.c

#include <gtk/gtk.h>

static void print_hello(GtkWidget * widget, gpointer data);

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

    gtk_init (&argc, &argv);

    /* Construct a GtkBuilder instance and load our UI description */
    builder = gtk_builder_new();
    gtk_builder_add_from_file(builder, "builder.ui", NULL);

    /* Connect signal handlers to the constructed widgets. */
    window = gtk_builder_get_object (builder, "window");
    g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);

    button = gtk_builder_get_object (builder, "button1");
    g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);

    button = gtk_builder_get_object (builder, "button2");
    g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);

    button = gtk_builder_get_object (builder, "quit");
    g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);

    gtk_main ();

    return 0;
}

static void print_hello(GtkWidget * widget, gpointer data)
{
    g_print ("Hello World\n");
}

Makefile:

main: main.c
    gcc main.c -o main `pkg-config --cflags --libs gtk+-3.0`