_still_length->SetRange (1, 3600);
_still_length->Bind (wxEVT_SPINCTRL, boost::bind (&DefaultsPage::still_length_changed, this));
_directory->Bind (wxEVT_DIRPICKER_CHANGED, boost::bind (&DefaultsPage::directory_changed, this));
_kdm_directory->Bind (wxEVT_DIRPICKER_CHANGED, boost::bind (&DefaultsPage::kdm_directory_changed, this));
_still_length->SetRange (1, 3600);
_still_length->Bind (wxEVT_SPINCTRL, boost::bind (&DefaultsPage::still_length_changed, this));
_directory->Bind (wxEVT_DIRPICKER_CHANGED, boost::bind (&DefaultsPage::directory_changed, this));
_kdm_directory->Bind (wxEVT_DIRPICKER_CHANGED, boost::bind (&DefaultsPage::kdm_directory_changed, this));