+ GtkButton *bin = GTK_BUTTON(m_widget);
+ if (bin->child == NULL)
+ { // initial bitmap
+ GtkWidget *pixmap = gtk_pixmap_new(the_one.GetPixmap(), mask);
+ gtk_widget_show(pixmap);
+ gtk_container_add(GTK_CONTAINER(m_widget), pixmap);
+ }
+ else
+ { // subsequent bitmaps
+ GtkPixmap *g_pixmap = GTK_PIXMAP(bin->child);
+ gtk_pixmap_set(g_pixmap, the_one.GetPixmap(), mask);
+ }