Function SCIPsetRootDialog 

pub unsafe extern "C" fn SCIPsetRootDialog(
    scip: *mut SCIP,
    dialog: *mut SCIP_DIALOG,
) -> SCIP_RETCODE

makes given dialog the root dialog of SCIP’s interactive user shell; captures dialog and releases former root dialog

@return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref SCIP_Retcode “SCIP_RETCODE” for a complete list of error codes.