inline Window button_iconify() const { return _button_iconify.window(); }
//! Gets the window id of the frame's "maximize button" subelement
inline Window button_max() const { return _button_max.window(); }
inline Window button_iconify() const { return _button_iconify.window(); }
//! Gets the window id of the frame's "maximize button" subelement
inline Window button_max() const { return _button_max.window(); }