if (Sys.getenv("R_OSTYPE") == "windows" || .Platform$OS.type == "windows") {
    importFrom(utils, winProgressBar, getWinProgressBar, setWinProgressBar)
}
importFrom(utils, txtProgressBar, getTxtProgressBar, setTxtProgressBar,
    flush.console)
export(pbapply, pbsapply, pblapply, pbreplicate,
    startpb, setpb, getpb, closepb, dopb, pboptions,
    timerProgressBar, setTimerProgressBar, getTimerProgressBar)

