Sets the travel mode enter battery threshold (percentage).
PRL_RESULT PrlVmCfg_SetTravelModeEnterThreshold( PRL_HANDLE hVmCfg, PRL_UINT32 nThreshold );
PrlApiVm.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle was passed.
PRL_ERR_SUCCESS - function completed successfully.