dialog=gtk_message_dialog_new(GTK_WINDOW(window),GTK_DIALOG_MODAL,GTK_MESSAGE_QUESTION,GTK_BUTTONS_YES_NO,"The theme has not been saved.\nWould you like to save it?");
dialog=gtk_message_dialog_new(GTK_WINDOW(window),GTK_DIALOG_MODAL,GTK_MESSAGE_QUESTION,GTK_BUTTONS_YES_NO,"The theme has not been saved.\nWould you like to save it?");