mod/maxgui.mod/fltkmaxgui.mod/src/Fl_Tree_Item.cxx
void Fl_Tree_Item::open() {
  _open = 1;
  // Tell children to show() their widgets
  for ( int t=0; t<_children.total(); t++ ) {
    _children[t]->show_widgets();
  }
}
/// Open this item and all its children.
Open this item and all its children.
Open this item and all its children .
void Fl_Tree_Item::open() {
  _open = 1;
  for ( int t=0; t<_children.total(); t++ ) {
    _children[t]->show_widgets();
  }
}
void Fl_Tree_Item :: open ( ) { _open = 1 ; for ( int t = 0 ; t < _children . total ( ) ; t ++ ) { _children [ t ] -> show_widgets ( ) ; } }
Open this item and all its children.
Open this item and all its children .
// Tell children to show() their widgets