Linux Emacs 中编写GTK应用程序

#include
//主窗口中按钮的回调函数
void on_button_clicked(GtkWidget* button, gpointer userdata)
{
GtkWidget *dialog;创建带确认按钮的对话框，父控件为空
dialog = gtk_message_dialog_new(NULL,
GTK_DIALOG_MODAL |GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_OK,
(gchar*)userdata);
gtk_dialog_run(GTK_DIALOG(dialog));//显示并运行对话框
gtk_widget_destroy(dialog);//销毁对话框
}
//主函数
int main(int argc, char* argv[])
{
GtkWidget *window, *button;
//初始化GTK+程序
gtk_init(&argc, &argv);
//创建窗口，并为窗口的关闭信号加回调函数以便退出
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect(G_OBJECT(window),"delete_event",
G_CALLBACK(gtk_main_quit),NULL);
gtk_window_set_title(GTK_WINDOW(window),"Hello World!");
gtk_container_set_border_width(GTK_CONTAINER(window),10);
//创建按钮控件，为单击信号加回调函数，将其放入窗口中
button=gtk_button_new_with_label("Hello World!");
g_signal_connect(G_OBJECT(button),"clicked",
G_CALLBACK(on_button_clicked),(gpointer)"你好！\n 自由的世
界。");
gtk_container_add(GTK_CONTAINER(window),button);
//下面函数显示窗口控件同时显示其中的所有其它控件
gtk_widget_show_all(window);
gtk_main();
return FALSE;
}