Functions/Test-RegistryKeyValue.ps1
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# Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. function Test-RegistryKeyValue { <# .SYNOPSIS Tests if a registry value exists. .DESCRIPTION The usual ways for checking if a registry value exists don't handle when a value simply has an empty or null value. This function actually checks if a key has a value with a given name. .EXAMPLE Test-RegistryKeyValue -Path 'hklm:\Software\Carbon\Test' -Name 'Title' Returns `True` if `hklm:\Software\Carbon\Test` contains a value named 'Title'. `False` otherwise. #> [CmdletBinding()] param( [Parameter(Mandatory=$true)] [string] # The path to the registry key where the value should be set. Will be created if it doesn't exist. $Path, [Parameter(Mandatory=$true)] [string] # The name of the value being set. $Name ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -Session $ExecutionContext.SessionState if( -not (Test-Path -Path $Path -PathType Container) ) { return $false } $properties = Get-ItemProperty -Path $Path if( -not $properties ) { return $false } $member = Get-Member -InputObject $properties -Name $Name if( $member ) { return $true } else { return $false } } |