gui::IGUIButton* button =
toolbar->addButton (scm_to_int32 (id),
scm_to_wide_char_string (text),
scm_to_wide_char_string (tooltiptext),
gui::IGUIButton* button =
toolbar->addButton (scm_to_int32 (id),
scm_to_wide_char_string (text),
scm_to_wide_char_string (tooltiptext),