Powershell: UPnP ContentDirectory浏览器不返回任何结果

Question

我想浏览我的媒体服务器( Rasperry Pi上的MiniDLNA 1.1.5 )。以下是我到目前为止拥有的代码：

$DeviceFinder = New-Object -COM "UPnP.UPnPDeviceFinder"
$DeviceType = "urn:schemas-upnp-org:service:ContentDirectory:1"

Write-Host "Finding MediaServer devices..."
$Devices = $DeviceFinder.FindByType($DeviceType,0)
$MediaServer = $Devices | Where-Object { $_.FriendlyName -like "*LittlePi*" }

$MediaServerDirectory = $MediaServer.Services | Where-Object { $_.Id -eq "urn:upnp-org:serviceId:ContentDirectory" }

Write-Host "MediaServer Description:" $MediaServer.Description
Write-Host "Browsing MediaServer..."

$ContainerID = 0
$BrowseFlag = "BrowseDirectChildren"
$Filter = ""
$StartIndex = 0
$RequestedCount = 1000
$SortCriteria = ""
$myInObject = @($ContainerID, $BrowseFlag, $Filter, $StartIndex, $RequestedCount, $SortCriteria)
$outArgs = @()

$returnValue = $MediaServerDirectory.InvokeAction("Browse", $myInObject, [ref]$outArgs)

我的问题是$returnValue和$outArgs都是$null。

Answer 1

在调用InvokeAction之前，您是否尝试过设置$outArgs = $null？

(搜索3个关键字: powershell com upnp以查看我的示例)

不确定这是否会对$returnvalue产生任何影响。