Update calling-code-snippets.md

Reformatted to follow MS style guidelines. 
Added PowerShell example code.

Author: baardhermansen

intune/configmgr/develop/core/understand/calling-code-snippets.md

@@ -6,14 +6,97 @@ ms.subservice: sdk
 ms.topic: article
 ms.collection: tier3
 ---
+
 # Calling Configuration Manager Code Snippets
+
 The following code samples show how to set up the calling code for the code examples that are used throughout the Configuration Manager Software Development Kit (SDK).
 
- Replace the SNIPPETMETHOD snippet with the snippet that you want to run. In most cases you will need to make changes, such as adding parameters, to make the code work.
+Replace the SNIPPETMETHOD snippet with the snippet that you want to run. In most cases you will need to make changes, such as adding parameters, to make the code work.
+
+For more information about remote Windows Management Instrumentation (WMI) connections, see [Connecting to WMI on a Remote Computer](/windows/win32/wmisdk/connecting-to-wmi-on-a-remote-computer.md).
+
+## Examples
+
+```powershell
+# Prompt for computer name
+$computer = Read-Host "Computer you want to connect to (Enter . for local)"
+
+# Determine whether to prompt for credentials
+if ($computer -eq ".") {
+    $credential = $null
+}
+else {
+    $credential = Get-Credential -Message "Enter credentials for $computer"
+}
+
+# Connect to SMS Provider
+$connection = Connect-SMSProvider -Server $computer -Credential $credential
+
+if (-not $connection) {
+    Write-Host "Call to connect failed"
+}
+else {
+    SNIPPETMETHODNAME -Connection $connection
+}
+
+#region Functions
+
+function Connect-SMSProvider {
+    param(
+        [string]$Server,
+        [System.Management.Automation.PSCredential]$Credential
+    )
+
+    try {
+        # If local machine, do not use credentials
+        if ($Server -eq "." -or $Server -eq $env:COMPUTERNAME) {
+            $Credential = $null
+            $Server = "."
+        }
+
+        # Connect to root\sms
+        $rootSmsParams = @{
+            ComputerName = $Server
+            Namespace    = "root\sms"
+            ErrorAction  = 'Stop'
+        }
+        if ($Credential) { $rootSmsParams.Credential = $Credential }
+
+        $smsRoot = Get-WmiObject @rootSmsParams
+
+        # Find provider location
+        $providerLocations = $smsRoot.InstancesOf("SMS_ProviderLocation")
+        $localProvider = $providerLocations | Where-Object ProviderForLocalSite
+        $siteNamespace = "root\sms\site_$($localProvider.SiteCode)"
+
+        $siteParams = @{
+            ComputerName = $localProvider.Machine
+            Namespace    = $siteNamespace
+            ErrorAction  = 'Stop'
+        }
+        if ($Credential) { $siteParams.Credential = $Credential }
 
- For more information about remote Windows Management Instrumentation (WMI) connections, see [Connecting to WMI on a Remote Computer](/windows/win32/wmisdk/connecting-to-wmi-on-a-remote-computer).
+        Get-WmiObject @siteParams
+
+        return $null
+    }
+    catch {
+        Write-Host "Couldn't connect: $($_.Exception.Message)"
+        return $null
+    }
+}
 
-## Example
+function SNIPPETMETHODNAME {
+    param(
+        $Connection
+    )
+
+    # Insert snippet code here
+    Write-Host "Connected successfully. Insert your code here."
+}
+#endregion
+
+```
 
 ```vbs
 Dim connection
@@ -220,22 +303,26 @@ namespace ConfigurationManagerSnippets
 ## Compiling the Code
 
 ### Namespaces
- System
 
- Microsoft.ConfigurationManagement.ManagementProvider
+System
 
- Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine
+Microsoft.ConfigurationManagement.ManagementProvider
+
+Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine
 
 ### Assembly
- adminui.wqlqueryengine
 
- microsoft.configurationmanagement.managementprovider
+adminui.wqlqueryengine
+
+microsoft.configurationmanagement.managementprovider
 
 > [!NOTE]
->  The assemblies are in the \<Program Files>\Microsoft Endpoint Manager\AdminConsole\bin folder.
+> The assemblies are in the \<Program Files>\Microsoft Endpoint Manager\AdminConsole\bin folder.
 
 ## Runtime Requirements
- For more information, see [Configuration Manager Server Runtime Requirements](../../../develop/core/reqs/server-runtime-requirements.md).
+
+For more information, see [Configuration Manager Server Runtime Requirements](../../../develop/core/reqs/server-runtime-requirements.md).
 
 ## Robust Programming
- The Configuration Manager exceptions that can be raised are [SmsConnectionException](/previous-versions/system-center/developer/cc147431(v=msdn.10)) and [SmsQueryException](/previous-versions/system-center/developer/cc147436(v=msdn.10)). These can be caught together with [SmsException](/previous-versions/system-center/developer/cc147433(v=msdn.10)).
+
+The Configuration Manager exceptions that can be raised are [SmsConnectionException](/previous-versions/system-center/developer/cc147431(v=msdn.10)) and [SmsQueryException](/previous-versions/system-center/developer/cc147436(v=msdn.10)). These can be caught together with [SmsException](/previous-versions/system-center/developer/cc147433(v=msdn.10)).