GtkToolbar::prepend_itemGtkToolbar::prepend_itemGtkButton prepend_item(string button_text, string tooltip_text, string tooltip_private_text, GtkPixmap icon, string callback, [mixed userparam]); 
    
     Adds a widget before the first item. Just calls 
     insert_element()  with the 
     position parameter set to 0 and the widget
     type set to button.
     
    
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