#Requires -RunAsAdministrator
$ErrorActionPreference = 'Continue'
$dte = New-Object -ComObject TcXaeShell.DTE.17.0
$dte.MainWindow.Visible = $true
try { $dte.SuppressUI = $false } catch {}
$dte.Solution.Open('C:\Users\tonycao\work\twincat3-auto-cli\TwinCAT_EL6695_Primary\TwinCATProject1.sln')
Start-Sleep 25
$sm = $null
for ($i = 0; $i -lt 20; $i++) {
    try { $sm = $dte.Solution.Projects.Item(1).Object; if ($sm) { break } } catch {}
    Start-Sleep 3
}
if (-not $sm) { Write-Host 'no sysmgr'; exit 1 }

foreach ($prefix in @('TIRT', 'TISM', 'TISY', 'TICC', 'TIDK')) {
    try {
        $it = $sm.LookupTreeItem($prefix)
        if ($it) {
            Write-Host "=== $prefix : $($it.Name) childcount=$($it.ChildCount) ==="
            for ($j = 1; $j -le [int]$it.ChildCount; $j++) {
                $ch = $it.Child($j)
                Write-Host "  [$j] $($ch.Name) subtype=$($ch.ItemSubType)"
            }
        }
    } catch { Write-Host "$prefix : not found" }
}