Functions/PoShMon.OSMonitoring/Get-EventLogItemsBySeverity.ps1

Function Get-EventLogItemsBySeverity
{
    param (
        [string]$ComputerName,
        [string]$SeverityCode = "Warning",
        $WmiStartDate
    )

   $events = Get-WmiObject win32_NTLogEvent -ComputerName $ComputerName -filter "(logfile='Application') AND (Type ='$severityCode') And TimeGenerated > '$wmiStartDate'"

   return $events
}