A question on the forum about getting monitor resolution led to this code
Get-CimInstance -Namespace root\wmi -ClassName WmiMonitorId |
foreach {
$filter = ("InstanceName = '$($psitem.InstanceName)'").Replace("`\", "`\`\")
$maxres = Get-CimInstance -Namespace root\wmi -ClassName WmiMonitorListedSupportedSourceModes -Filter $filter |
Select-Object -ExpandProperty MonitorSourceModes |
Sort-Object -Property {$_.HorizontalActivePixels * $_.VerticalActivePixels} -Descending |
Select-Object -First 1
if ($psitem.UserFriendlyNameLength -gt 0) {
$name = ($psitem.UserFriendlyName -notmatch '^0$' | foreach {[char]$_}) -join ""
}
else {
$name = 'Unknown'
}
$props = [ordered]@{
Manufacturer = ($psitem.ManufacturerName -notmatch '^0$' | foreach {[char]$_}) -join ""
Name = $name
Serial = ($_.SerialNumberID -notmatch '^0$' | foreach {[char]$_}) -join ""
MaximumResolution = "$($maxres.HorizontalActivePixels) x $($maxres.VerticalActivePixels)"
}
New-Object -TypeName PSObject -Property $props
}
NOTE – we’re working in the root\wmi namespace not PowerShell’s default of root\cimv2
Use WmiMonitorId to get the attached monitors and for each of them create a filter using the instance name. You have to replace \ with \\ when dealing with WMI.
Use WmiMonitorListedSupportedSourceModes and expand MonitorSourceModes. use sort-object to find the maximum resolution (multiply horizontal by vertical)
Create an output object. I had to deal with the name of the monitor separately because one of my monitors didn’t have a user friendly name.
Results look like this
Manufacturer Name Serial MaximumResolution ------------ ---- ------ ----------------- GSM 22EA63 304NDJX51788 1920 x 1080 LEN Unknown 0 1600 x 900
under: PowerShell and CIM