Microsoft.Windows.Setting.Accessibility

0.1.5-alpha

Microsoft.Windows.Setting.Accessibility.psm1

# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.

$ErrorActionPreference = 'Stop'
Set-StrictMode -Version Latest

enum Ensure {
    Absent
    Present
}

enum TextSize {
    KeepCurrentValue
    Small
    Medium
    Large
    ExtraLarge
}

enum MagnificationValue {
    KeepCurrentValue
    None
    Low
    Medium
    High
}

enum PointerSize {
    KeepCurrentValue
    Normal
    Medium
    Large
    ExtraLarge
}

[Flags()] enum StickyKeysOptions {
    # https://learn.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-stickykeys
    None = 0x00000000 # 0
    Active = 0x00000001 # 1
    Available = 0x00000002 # 2
    HotkeyActive = 0x00000004 # 4
    ConfirmHotkey = 0x00000008 # 8
    HotkeySound = 0x00000010# 16
    VisualIndicator = 0x00000020 # 32
    AudibleFeedback = 0x00000040 # 64
    TriState = 0x00000080 # 128
    TwoKeysOff = 0x00000100 # 256
}

[Flags()] enum ToggleKeysOptions {
    # https://learn.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-togglekeys
    None = 0x00000000 # 0
    Active = 0x00000001 # 1
    Available = 0x00000002 # 2
    HotkeyActive = 0x00000004 # 4
    ConfirmHotkey = 0x00000008 # 8
    HotkeySound = 0x00000010# 16
    VisualIndicator = 0x00000020 # 32
}

[Flags()] enum FilterKeysOptions {
    # https://learn.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-filterkeys
    None = 0x00000000 # 0
    Active = 0x00000001 # 1
    Available = 0x00000002 # 2
    HotkeyActive = 0x00000004 # 4
    ConfirmHotkey = 0x00000008 # 8
    HotkeySound = 0x00000010# 16
    VisualIndicator = 0x00000020 # 32
    AudibleFeedback = 0x00000040 # 64
}

if ([string]::IsNullOrEmpty($env:TestRegistryPath)) {
    $global:AccessibilityRegistryPath = 'HKCU:\Software\Microsoft\Accessibility\'
    $global:MagnifierRegistryPath = 'HKCU:\Software\Microsoft\ScreenMagnifier\'
    $global:PointerRegistryPath = 'HKCU:\Control Panel\Cursors\'
    $global:ControlPanelAccessibilityRegistryPath = 'HKCU:\Control Panel\Accessibility\'
    $global:AudioRegistryPath = 'HKCU:\Software\Microsoft\Multimedia\Audio\'
    $global:PersonalizationRegistryPath = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize\'
    $global:NTAccessibilityRegistryPath = 'HKCU:\Software\Microsoft\Windows NT\CurrentVersion\Accessibility\'
    $global:CursorIndicatorAccessibilityRegistryPath = 'HKCU:\Software\Microsoft\Accessibility\CursorIndicator\'
    $global:ControlPanelDesktopRegistryPath = 'HKCU:\Control Panel\Desktop'
    $global:StickyKeysRegistryPath = 'HKCU:\Control Panel\Accessibility\StickyKeys'
    $global:ToggleKeysRegistryPath = 'HKCU:\Control Panel\Accessibility\ToggleKeys'
    $global:FilterKeysRegistryPath = 'HKCU:\Control Panel\Accessibility\Keyboard Response'
    $global:EyeControlRegistryPath = 'HKCU:\Software\Microsoft\input\EC\'
} else {
    $global:AccessibilityRegistryPath = $global:MagnifierRegistryPath = $global:PointerRegistryPath = $global:ControlPanelAccessibilityRegistryPath = $global:AudioRegistryPath = $global:PersonalizationRegistryPath = $global:NTAccessibilityRegistryPath = $global:CursorIndicatorAccessibilityRegistryPath = $global:ControlPanelDesktopRegistryPath = $global:StickyKeysRegistryPath = $global:ToggleKeysRegistryPath = $global:FilterKeysRegistryPath = $global:EyeControlRegistryPath = $env:TestRegistryPath
}

[DSCResource()]
class Text {
    [DscProperty(Key)] [TextSize] $Size = [TextSize]::KeepCurrentValue
    [DscProperty(NotConfigurable)] [int] $SizeValue

    hidden [string] $TextScaleFactor = 'TextScaleFactor'

    [Text] Get() {
        $currentState = [Text]::new()

        if (-not(DoesRegistryKeyPropertyExist -Path $global:AccessibilityRegistryPath -Name $this.TextScaleFactor)) {
            $currentState.Size = [TextSize]::Small
            $currentState.SizeValue = 96
        } else {
            $currentState.SizeValue = [int](Get-ItemPropertyValue -Path $global:AccessibilityRegistryPath -Name $this.TextScaleFactor)
            $currentSize = switch ($currentState.sizeValue) {
                96 { [TextSize]::Small }
                120 { [TextSize]::Medium }
                144 { [TextSize]::Large }
                256 { [TextSize]::ExtraLarge }
            }

            if ($null -ne $currentSize) {
                $currentState.Size = $currentSize
            }
        }

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()
        if ($this.Size -ne [TextSize]::KeepCurrentValue -and $this.Size -ne $currentState.Size) {
            return $false
        }

        return $true
    }

    [void] Set() {
        if ($this.Size -ne [TextSize]::KeepCurrentValue) {
            $desiredSize = switch ([TextSize]($this.Size)) {
                Small { 96 }
                Medium { 120 }
                Large { 144 }
                ExtraLarge { 256 }
            }

            Set-ItemProperty -Path $global:AccessibilityRegistryPath -Name $this.TextScaleFactor -Value $desiredSize -Type DWORD
        }
    }
}

[DSCResource()]
class Magnifier {
    [DscProperty(Key)] [MagnificationValue] $Magnification = [MagnificationValue]::KeepCurrentValue
    [DscProperty(Mandatory)] [int] $ZoomIncrement = 25
    [DscProperty()] [bool] $StartMagnify = $false
    [DscProperty(NotConfigurable)] [int] $MagnificationLevel
    [DscProperty(NotConfigurable)] [int] $ZoomIncrementLevel

    hidden [string] $MagnificationProperty = 'Magnification'
    hidden [string] $ZoomIncrementProperty = 'ZoomIncrement'

    [Magnifier] Get() {
        $currentState = [Magnifier]::new()

        if (-not(DoesRegistryKeyPropertyExist -Path $global:MagnifierRegistryPath -Name $this.MagnificationProperty)) {
            $currentState.Magnification = [MagnificationValue]::None
            $currentState.MagnificationLevel = 0
        } else {
            $currentState.MagnificationLevel = (Get-ItemProperty -Path $global:MagnifierRegistryPath -Name $this.MagnificationProperty).Magnification
            $currentMagnification = switch ($currentState.MagnificationLevel) {
                0 { [MagnificationValue]::None }
                100 { [MagnificationValue]::Low }
                200 { [MagnificationValue]::Medium }
                300 { [MagnificationValue]::High }
                default { [MagnificationValue]::KeepCurrentValue }
            }

            $currentState.Magnification = $currentMagnification
        }

        if (-not(DoesRegistryKeyPropertyExist -Path $global:MagnifierRegistryPath -Name $this.ZoomIncrementProperty)) {
            $currentState.ZoomIncrement = 25
            $currentState.ZoomIncrementLevel = 25
        } else {
            $currentState.ZoomIncrementLevel = (Get-ItemProperty -Path $global:MagnifierRegistryPath -Name $this.ZoomIncrementProperty).ZoomIncrement
            $currentState.ZoomIncrement = $currentState.ZoomIncrementLevel
        }

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()
        if ($this.Magnification -ne [MagnificationValue]::KeepCurrentValue -and $this.Magnification -ne $currentState.Magnification) {
            return $false
        }
        if ($this.ZoomIncrement -ne $currentState.ZoomIncrement) {
            return $false
        }

        return $true
    }

    [void] Set() {
        if ($this.Test()) {
            return
        }

        if (-not (Test-Path -Path $global:MagnifierRegistryPath)) {
            New-Item -Path $global:MagnifierRegistryPath -Force | Out-Null
        }

        if ($this.Magnification -ne [MagnificationValue]::KeepCurrentValue) {
            $desiredMagnification = switch ([MagnificationValue]($this.Magnification)) {
                None { 0 }
                Low { 100 }
                Medium { 200 }
                High { 300 }
            }

            Set-ItemProperty -Path $global:MagnifierRegistryPath -Name $this.MagnificationProperty -Value $desiredMagnification -Type DWORD
        }

        $currentState = $this.Get()

        if ($this.ZoomIncrement -ne $currentState.ZoomIncrement) {
            Set-ItemProperty -Path $global:MagnifierRegistryPath -Name $this.ZoomIncrementProperty -Value $this.ZoomIncrement -Type DWORD
        }

        if (($this.StartMagnify) -and (($null -eq (Get-Process -Name 'Magnify' -ErrorAction SilentlyContinue)))) {
            Start-Process 'C:\Windows\System32\Magnify.exe'
        }
    }
}

[DSCResource()]
class MousePointer {
    [DscProperty(Key)] [PointerSize] $PointerSize = [PointerSize]::KeepCurrentValue
    [DscProperty(NotConfigurable)] [string] $PointerSizeValue

    hidden [string] $PointerSizeProperty = 'CursorBaseSize'

    [MousePointer] Get() {
        $currentState = [MousePointer]::new()

        if (-not(DoesRegistryKeyPropertyExist -Path $global:PointerRegistryPath -Name $this.PointerSizeProperty)) {
            $currentState.PointerSize = [PointerSize]::Normal
            $currentState.PointerSizeValue = '32'
        } else {
            $currentState.PointerSizeValue = (Get-ItemProperty -Path $global:PointerRegistryPath -Name $this.PointerSizeProperty).CursorBaseSize
            $currentSize = switch ($currentState.PointerSizeValue) {
                '32' { [PointerSize]::Normal }
                '96' { [PointerSize]::Medium }
                '144' { [PointerSize]::Large }
                '256' { [PointerSize]::ExtraLarge }
                default { [PointerSize]::KeepCurrentValue }
            }

            $currentState.PointerSize = $currentSize
        }

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()
        if ($this.PointerSize -ne [PointerSize]::KeepCurrentValue -and $this.PointerSize -ne $currentState.PointerSize) {
            return $false
        }

        return $true
    }

    [void] Set() {
        if ($this.PointerSize -ne [PointerSize]::KeepCurrentValue) {
            $desiredSize = switch ([PointerSize]($this.PointerSize)) {
                Normal { '32' }
                Medium { '96' }
                Large { '144' }
                ExtraLarge { '256' }
            }

            if (-not (Test-Path -Path $global:PointerRegistryPath)) {
                New-Item -Path $global:PointerRegistryPath -Force | Out-Null
            }

            Set-ItemProperty -Path $global:PointerRegistryPath -Name $this.PointerSizeProperty -Value $desiredSize
        }
    }
}

[DSCResource()]
class VisualEffect {
    # Key required. Do not set.
    [DscProperty(Key)] [string] $SID
    [DscProperty()] [nullable[bool]] $AlwaysShowScrollbars
    [DscProperty()] [nullable[bool]] $TransparencyEffects
    [DscProperty()] [int] $MessageDurationInSeconds

    static hidden [string] $DynamicScrollbarsProperty = 'DynamicScrollbars'
    static hidden [string] $TransparencySettingProperty = 'EnableTransparency'
    static hidden [string] $MessageDurationProperty = 'MessageDuration'

    static [bool] GetShowDynamicScrollbarsStatus() {
        if (-not(DoesRegistryKeyPropertyExist -Path $global:ControlPanelAccessibilityRegistryPath -Name ([VisualEffect]::DynamicScrollbarsProperty))) {
            return $false
        } else {
            $dynamicScrollbarsValue = (Get-ItemProperty -Path $global:ControlPanelAccessibilityRegistryPath -Name ([VisualEffect]::DynamicScrollbarsProperty)).DynamicScrollbars
            return ($dynamicScrollbarsValue -eq 0)
        }
    }

    static [bool] GetTransparencyStatus() {
        if (-not(DoesRegistryKeyPropertyExist -Path $global:PersonalizationRegistryPath -Name ([VisualEffect]::TransparencySettingProperty))) {
            return $false
        } else {
            $TransparencySetting = (Get-ItemProperty -Path $global:PersonalizationRegistryPath -Name ([VisualEffect]::TransparencySettingProperty)).EnableTransparency
            return ($TransparencySetting -eq 0)
        }
    }

    static [int] GetMessageDuration() {
        if (-not(DoesRegistryKeyPropertyExist -Path $global:ControlPanelAccessibilityRegistryPath -Name ([VisualEffect]::MessageDurationProperty))) {
            return 5
        } else {
            $MessageDurationSetting = (Get-ItemProperty -Path $global:ControlPanelAccessibilityRegistryPath -Name ([VisualEffect]::MessageDurationProperty)).MessageDuration
            return $MessageDurationSetting
        }
    }

    [VisualEffect] Get() {
        $currentState = [VisualEffect]::new()
        $currentState.AlwaysShowScrollbars = [VisualEffect]::GetShowDynamicScrollbarsStatus()
        $currentState.TransparencyEffects = [VisualEffect]::GetTransparencyStatus()
        $currentState.MessageDurationInSeconds = [VisualEffect]::GetMessageDuration()

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()
        if (($null -ne $this.AlwaysShowScrollbars) -and ($this.AlwaysShowScrollbars -ne $currentState.AlwaysShowScrollbars)) {
            return $false
        }
        if (($null -ne $this.TransparencyEffects) -and ($this.TransparencyEffects -ne $currentState.TransparencyEffects)) {
            return $false
        }
        if ((0 -ne $this.MessageDurationInSeconds) -and ($this.MessageDurationInSeconds -ne $currentState.MessageDurationInSeconds)) {
            return $false
        }

        return $true
    }

    [void] Set() {
        if (-not $this.Test()) {
            if (-not (Test-Path -Path $global:ControlPanelAccessibilityRegistryPath)) {
                New-Item -Path $global:ControlPanelAccessibilityRegistryPath -Force | Out-Null
            }
            if ($null -ne $this.AlwaysShowScrollbars) {
                $dynamicScrollbarValue = if ($this.AlwaysShowScrollbars) { 0 } else { 1 }
                Set-ItemProperty -Path $global:ControlPanelAccessibilityRegistryPath -Name ([VisualEffect]::DynamicScrollbarsProperty) -Value $dynamicScrollbarValue
            }
            if ($null -ne $this.TransparencyEffects) {
                $transparencyValue = if ($this.TransparencyEffects) { 0 } else { 1 }

                if (-not (DoesRegistryKeyPropertyExist -Path $global:PersonalizationRegistryPath -Name ([VisualEffect]::TransparencySettingProperty))) {
                    New-ItemProperty -Path $global:PersonalizationRegistryPath -Name ([VisualEffect]::TransparencySettingProperty) -Value $transparencyValue -PropertyType DWord
                }
                Set-ItemProperty -Path $global:PersonalizationRegistryPath -Name ([VisualEffect]::TransparencySettingProperty) -Value $transparencyValue
            }
            if (0 -ne $this.MessageDurationInSeconds) {
                $min = 5
                $max = 300
                if ($this.MessageDurationInSeconds -notin $min..$max) {
                    throw "MessageDurationInSeconds must be between $min and $max. Value $($this.MessageDurationInSeconds) was provided."
                }
                Set-ItemProperty -Path $global:ControlPanelAccessibilityRegistryPath -Name ([VisualEffect]::MessageDurationProperty) -Value $this.MessageDurationInSeconds
            }
        }
    }
}

[DSCResource()]
class Audio {
    # Key required. Do not set.
    [DscProperty(Key)] [string] $SID
    [DscProperty()] [bool] $EnableMonoAudio = $false

    static hidden [string] $EnableMonoAudioProperty = 'AccessibilityMonoMixState'

    static [bool] GetEnableMonoAudioStatus() {
        if (-not(DoesRegistryKeyPropertyExist -Path $global:AudioRegistryPath -Name ([Audio]::EnableMonoAudioProperty))) {
            return $false
        } else {
            $AudioMonoSetting = (Get-ItemProperty -Path $global:AudioRegistryPath -Name ([Audio]::EnableMonoAudioProperty)).AccessibilityMonoMixState
            return ($AudioMonoSetting -eq 0)
        }
    }

    [Audio] Get() {
        $currentState = [Audio]::new()
        $currentState.EnableMonoAudio = [Audio]::GetEnableMonoAudioStatus()

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()
        if ($this.EnableMonoAudio -ne $currentState.EnableMonoAudio) {
            return $false
        }

        return $true
    }

    [void] Set() {
        if (-not $this.Test()) {
            if (-not (Test-Path -Path $global:AudioRegistryPath)) {
                New-Item -Path $global:AudioRegistryPath -Force | Out-Null
            }

            $monoAudioValue = if ($this.EnableMonoAudio) { 0 } else { 1 }

            Set-ItemProperty -Path $global:AudioRegistryPath -Name ([Audio]::EnableMonoAudioProperty) -Value $monoAudioValue
        }
    }
}

[DSCResource()]
class TextCursor {
    # Key required. Do not set.
    [DscProperty(Key)] [string] $SID
    [DscProperty()] [nullable[bool]] $IndicatorStatus
    [DscProperty()] [int] $IndicatorSize
    [DscProperty()] [int] $IndicatorColor
    [DscProperty()] [int] $Thickness

    static hidden [string] $IndicatorStatusProperty = 'Configuration'
    static hidden [string] $IndicatorStatusValue = 'cursorindicator'
    static hidden [string] $IndicatorSizeProperty = 'IndicatorType'
    static hidden [string] $IndicatorColorProperty = 'IndicatorColor'
    static hidden [string] $ThicknessProperty = 'CaretWidth'


    static [bool] GetIndicatorStatus() {
        $indicatorStatusArgs = @{  Path = $global:NTAccessibilityRegistryPath; Name = ([TextCursor]::IndicatorStatusProperty) }
        if (-not(DoesRegistryKeyPropertyExist @indicatorStatusArgs)) {
            return $false
        } else {
            $textCursorSetting = (Get-ItemProperty @indicatorStatusArgs).Configuration
            return ($textCursorSetting -eq ([TextCursor]::IndicatorStatusValue))
        }
    }

    static [int] GetIndicatorSize() {
        $indicatorSizeArgs = @{  Path = $global:CursorIndicatorAccessibilityRegistryPath; Name = ([TextCursor]::IndicatorSizeProperty) }
        if (-not(DoesRegistryKeyPropertyExist @indicatorSizeArgs)) {
            return 1
        } else {
            $textCursorSetting = (Get-ItemProperty @indicatorSizeArgs).IndicatorType
            return $textCursorSetting
        }
    }

    static [int] GetIndicatorColor() {
        $indicatorColorArgs = @{  Path = $global:CursorIndicatorAccessibilityRegistryPath; Name = ([TextCursor]::IndicatorColorProperty) }
        if (-not(DoesRegistryKeyPropertyExist @indicatorColorArgs)) {
            return $false
        } else {
            $textCursorSetting = (Get-ItemProperty @indicatorColorArgs).IndicatorColor
            return $textCursorSetting
        }
    }

    static [int] GetThickness() {
        $thicknessArgs = @{ Path = $global:ControlPanelDesktopRegistryPath; Name = ([TextCursor]::ThicknessProperty); }
        if (-not(DoesRegistryKeyPropertyExist @thicknessArgs)) {
            return 1
        } else {
            $textCursorSetting = (Get-ItemProperty @thicknessArgs).CaretWidth
            return $textCursorSetting
        }
    }

    [TextCursor] Get() {
        $currentState = [TextCursor]::new()
        $currentState.IndicatorStatus = [TextCursor]::GetIndicatorStatus()
        $currentState.IndicatorSize = [TextCursor]::GetIndicatorSize()
        $currentState.IndicatorColor = [TextCursor]::GetIndicatorColor()
        $currentState.Thickness = [TextCursor]::GetThickness()

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()
        if (($null -ne $this.IndicatorStatus) -and ($this.IndicatorStatus -ne $currentState.IndicatorStatus)) {
            return $false
        }
        if ((0 -ne $this.IndicatorSize) -and ($this.IndicatorSize -ne $currentState.IndicatorSize)) {
            return $false
        }
        if ((0 -ne $this.IndicatorColor) -and ($this.IndicatorColor -ne $currentState.IndicatorColor)) {
            return $false
        }
        if ((0 -ne $this.Thickness) -and ($this.Thickness -ne $currentState.Thickness)) {
            return $false
        }

        return $true
    }

    [void] Set() {
        if (-not $this.Test()) {
            if ($null -ne $this.IndicatorStatus) {
                $indicatorStatusArgs = @{ Path = $global:NTAccessibilityRegistryPath; Name = ([TextCursor]::IndicatorStatusProperty); }
                $textCursorValue = if ($this.IndicatorStatus) { ([TextCursor]::IndicatorStatusValue) } else { '' }
                Set-ItemProperty @indicatorStatusArgs -Value $textCursorValue
            }

            if (0 -ne $this.IndicatorSize) {
                $indicatorSizeArgs = @{  Path = $global:CursorIndicatorAccessibilityRegistryPath; Name = ([TextCursor]::IndicatorSizeProperty) }
                $min = 1
                $max = 20
                if ($this.IndicatorSize -notin $min..$max) {
                    throw "IndicatorSize must be between $min and $max. Value $($this.IndicatorSize) was provided."
                }
                if (-not (DoesRegistryKeyPropertyExist @indicatorSizeArgs)) {
                    New-ItemProperty @indicatorSizeArgs -Value $this.IndicatorSize -PropertyType DWord
                }
                Set-ItemProperty @indicatorSizeArgs -Value $this.IndicatorSize
            }

            if (0 -ne $this.IndicatorColor) {
                $indicatorColorArgs = @{  Path = $global:CursorIndicatorAccessibilityRegistryPath; Name = ([TextCursor]::IndicatorColorProperty) }
                $min = 1
                $max = 99999999
                if ($this.IndicatorColor -notin $min..$max) {
                    throw "IndicatorColor must be between $min and $max. Value $($this.IndicatorColor) was provided."
                }
                if (-not (DoesRegistryKeyPropertyExist @indicatorColorArgs)) {
                    New-ItemProperty @indicatorColorArgs -Value $this.IndicatorColor -PropertyType DWord
                }
                Set-ItemProperty @indicatorColorArgs -Value $this.IndicatorColor
            }

            if (0 -ne $this.Thickness) {
                $thicknessArgs = @{ Path = $global:ControlPanelDesktopRegistryPath; Name = ([TextCursor]::ThicknessProperty); }
                $min = 1
                $max = 20
                if ($this.Thickness -notin $min..$max) {
                    throw "Thickness must be between $min and $max. Value $($this.Thickness) was provided."
                }
                Set-ItemProperty @thicknessArgs -Value $this.Thickness
            }
        }
    }
}

[DSCResource()]
class StickyKeys {
    # Key required. Do not set.
    [DscProperty(Key)] [string] $SID
    [DscProperty()] [nullable[bool]] $Active
    [DscProperty()] [nullable[bool]] $Available
    [DscProperty()] [nullable[bool]] $HotkeyActive
    [DscProperty()] [nullable[bool]] $ConfirmOnHotkeyActivation
    [DscProperty()] [nullable[bool]] $HotkeySound
    [DscProperty()] [nullable[bool]] $VisualIndicator
    [DscProperty()] [nullable[bool]] $AudibleFeedback
    [DscProperty()] [nullable[bool]] $TriState
    [DscProperty()] [nullable[bool]] $TwoKeysOff

    static hidden [string] $SettingsProperty = 'Flags'

    static [System.Enum] GetCurrentFlags() {
        if (-not(DoesRegistryKeyPropertyExist -Path $global:StickyKeysRegistryPath -Name ([StickyKeys]::SettingsProperty))) {
            return [StickyKeysOptions]::None
        } else {
            $StickyKeysFlags = [System.Enum]::Parse('StickyKeysOptions', (Get-ItemPropertyValue -Path $global:StickyKeysRegistryPath -Name ([StickyKeys]::SettingsProperty)))
            return $StickyKeysFlags
        }
    }

    [StickyKeys] Get() {
        $currentFlags = [StickyKeys]::GetCurrentFlags()

        $currentState = [StickyKeys]::new()
        $currentState.Active = $currentFlags.HasFlag([StickyKeysOptions]::Active)
        $currentState.Available = $currentFlags.HasFlag([StickyKeysOptions]::Available)
        $currentState.HotkeyActive = $currentFlags.HasFlag([StickyKeysOptions]::HotkeyActive)
        $currentState.ConfirmOnHotkeyActivation = $currentFlags.HasFlag([StickyKeysOptions]::ConfirmHotkey)
        $currentState.HotkeySound = $currentFlags.HasFlag([StickyKeysOptions]::HotkeySound)
        $currentState.VisualIndicator = $currentFlags.HasFlag([StickyKeysOptions]::VisualIndicator)
        $currentState.AudibleFeedback = $currentFlags.HasFlag([StickyKeysOptions]::AudibleFeedback)
        $currentState.TriState = $currentFlags.HasFlag([StickyKeysOptions]::TriState)
        $currentState.TwoKeysOff = $currentFlags.HasFlag([StickyKeysOptions]::TwoKeysOff)

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()

        if (($null -ne $this.Active) -and ($this.Active -ne $currentState.Active)) {
            return $false
        }

        if (($null -ne $this.Available) -and ($this.Available -ne $currentState.Available)) {
            return $false
        }

        if (($null -ne $this.HotkeyActive) -and ($this.HotkeyActive -ne $currentState.HotkeyActive)) {
            return $false
        }

        if (($null -ne $this.ConfirmOnHotkeyActivation) -and ($this.ConfirmOnHotkeyActivation -ne $currentState.ConfirmOnHotkeyActivation)) {
            return $false
        }

        if (($null -ne $this.HotkeySound) -and ($this.HotkeySound -ne $currentState.HotkeySound)) {
            return $false
        }

        if (($null -ne $this.VisualIndicator) -and ($this.VisualIndicator -ne $currentState.VisualIndicator)) {
            return $false
        }

        if (($null -ne $this.AudibleFeedback) -and ($this.AudibleFeedback -ne $currentState.AudibleFeedback)) {
            return $false
        }

        if (($null -ne $this.TriState) -and ($this.TriState -ne $currentState.TriState)) {
            return $false
        }

        if (($null -ne $this.TwoKeysOff) -and ($this.TwoKeysOff -ne $currentState.TwoKeysOff)) {
            return $false
        }

        return $true
    }

    [void] Set() {
        # Only make changes if changes are needed
        if (-not $this.Test()) {
            # If a value isn't set in the DSC, it should remain unchanged, to do this we need the current flags
            $flags = [StickyKeys]::GetCurrentFlags()

            if ($null -ne $this.Active) {
                $flags = $this.Active ? $flags -bor [StickyKeysOptions]::Active : $flags -band (-bnot [StickyKeysOptions]::Active)
            }

            if ($null -ne $this.Available) {
                $flags = $this.Available ? $flags -bor [StickyKeysOptions]::Available : $flags -band (-bnot [StickyKeysOptions]::Available)
            }

            if ($null -ne $this.HotkeyActive) {
                $flags = $this.HotkeyActive ? $flags -bor [StickyKeysOptions]::HotkeyActive : $flags -band (-bnot [StickyKeysOptions]::HotkeyActive)
            }

            if ($null -ne $this.ConfirmOnHotkeyActivation) {
                $flags = $this.ConfirmOnHotkeyActivation ? $flags -bor [StickyKeysOptions]::ConfirmHotkey : $flags -band (-bnot [StickyKeysOptions]::ConfirmHotkey)
            }

            if ($null -ne $this.HotkeySound) {
                $flags = $this.HotkeySound ? $flags -bor [StickyKeysOptions]::HotkeySound : $flags -band (-bnot [StickyKeysOptions]::HotkeySound)
            }

            if ($null -ne $this.VisualIndicator) {
                $flags = $this.VisualIndicator ? $flags -bor [StickyKeysOptions]::VisualIndicator : $flags -band (-bnot [StickyKeysOptions]::VisualIndicator)
            }

            if ($null -ne $this.AudibleFeedback) {
                $flags = $this.AudibleFeedback ? $flags -bor [StickyKeysOptions]::AudibleFeedback : $flags -band (-bnot [StickyKeysOptions]::AudibleFeedback)
            }

            if ($null -ne $this.TriState) {
                $flags = $this.TriState ? $flags -bor [StickyKeysOptions]::TriState : $flags -band (-bnot [StickyKeysOptions]::TriState)
            }

            if ($null -ne $this.TwoKeysOff) {
                $flags = $this.TwoKeysOff ? $flags -bor [StickyKeysOptions]::TwoKeysOff : $flags -band (-bnot [StickyKeysOptions]::TwoKeysOff)
            }

            # Set the value in the registry
            Set-ItemProperty -Path $global:StickyKeysRegistryPath -Name ([StickyKeys]::SettingsProperty) -Value $flags.GetHashCode()
        }
    }
}

[DSCResource()]
class ToggleKeys {
    # Key required. Do not set.
    [DscProperty(Key)] [string] $SID
    [DscProperty()] [nullable[bool]] $Active
    [DscProperty()] [nullable[bool]] $Available
    [DscProperty()] [nullable[bool]] $HotkeyActive
    [DscProperty()] [nullable[bool]] $ConfirmOnHotkeyActivation
    [DscProperty()] [nullable[bool]] $HotkeySound
    [DscProperty()] [nullable[bool]] $VisualIndicator

    static hidden [string] $SettingsProperty = 'Flags'

    static [System.Enum] GetCurrentFlags() {
        if (-not(DoesRegistryKeyPropertyExist -Path $global:ToggleKeysRegistryPath -Name ([ToggleKeys]::SettingsProperty))) {
            return [ToggleKeysOptions]::None
        } else {
            $ToggleKeysFlags = [System.Enum]::Parse('ToggleKeysOptions', (Get-ItemPropertyValue -Path $global:StickyKeysRegistryPath -Name ([StickyKeys]::SettingsProperty)))
            return $ToggleKeysFlags
        }
    }

    [ToggleKeys] Get() {
        $currentFlags = [ToggleKeys]::GetCurrentFlags()

        $currentState = [ToggleKeys]::new()
        $currentState.Active = $currentFlags.HasFlag([ToggleKeysOptions]::Active)
        $currentState.Available = $currentFlags.HasFlag([ToggleKeysOptions]::Available)
        $currentState.HotkeyActive = $currentFlags.HasFlag([ToggleKeysOptions]::HotkeyActive)
        $currentState.ConfirmOnHotkeyActivation = $currentFlags.HasFlag([ToggleKeysOptions]::ConfirmHotkey)
        $currentState.HotkeySound = $currentFlags.HasFlag([ToggleKeysOptions]::HotkeySound)
        $currentState.VisualIndicator = $currentFlags.HasFlag([ToggleKeysOptions]::VisualIndicator)

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()

        if (($null -ne $this.Active) -and ($this.Active -ne $currentState.Active)) {
            return $false
        }

        if (($null -ne $this.Available) -and ($this.Available -ne $currentState.Available)) {
            return $false
        }

        if (($null -ne $this.HotkeyActive) -and ($this.HotkeyActive -ne $currentState.HotkeyActive)) {
            return $false
        }

        if (($null -ne $this.ConfirmOnHotkeyActivation) -and ($this.ConfirmOnHotkeyActivation -ne $currentState.ConfirmOnHotkeyActivation)) {
            return $false
        }

        if (($null -ne $this.HotkeySound) -and ($this.HotkeySound -ne $currentState.HotkeySound)) {
            return $false
        }

        if (($null -ne $this.VisualIndicator) -and ($this.VisualIndicator -ne $currentState.VisualIndicator)) {
            return $false
        }

        return $true
    }

    [void] Set() {
        # Only make changes if changes are needed
        if (-not $this.Test()) {
            # If a value isn't set in the DSC, it should remain unchanged, to do this we need the current flags
            $flags = [ToggleKeys]::GetCurrentFlags()

            if ($null -ne $this.Active) {
                $flags = $this.Active ? $flags -bor [ToggleKeysOptions]::Active : $flags -band (-bnot [ToggleKeysOptions]::Active)
            }

            if ($null -ne $this.Available) {
                $flags = $this.Available ? $flags -bor [ToggleKeysOptions]::Available : $flags -band (-bnot [ToggleKeysOptions]::Available)
            }

            if ($null -ne $this.HotkeyActive) {
                $flags = $this.HotkeyActive ? $flags -bor [ToggleKeysOptions]::HotkeyActive : $flags -band (-bnot [ToggleKeysOptions]::HotkeyActive)
            }

            if ($null -ne $this.ConfirmOnHotkeyActivation) {
                $flags = $this.ConfirmOnHotkeyActivation ? $flags -bor [ToggleKeysOptions]::ConfirmHotkey : $flags -band (-bnot [ToggleKeysOptions]::ConfirmHotkey)
            }

            if ($null -ne $this.HotkeySound) {
                $flags = $this.HotkeySound ? $flags -bor [ToggleKeysOptions]::HotkeySound : $flags -band (-bnot [ToggleKeysOptions]::HotkeySound)
            }

            if ($null -ne $this.VisualIndicator) {
                $flags = $this.VisualIndicator ? $flags -bor [ToggleKeysOptions]::VisualIndicator : $flags -band (-bnot [ToggleKeysOptions]::VisualIndicator)
            }

            # Set the value in the registry
            Set-ItemProperty -Path $global:ToggleKeysRegistryPath -Name ([ToggleKeys]::SettingsProperty) -Value $flags.GetHashCode()
        }
    }
}

[DSCResource()]
class FilterKeys {
    # Key required. Do not set.
    [DscProperty(Key)] [string] $SID
    [DscProperty()] [nullable[bool]] $Active
    [DscProperty()] [nullable[bool]] $Available
    [DscProperty()] [nullable[bool]] $HotkeyActive
    [DscProperty()] [nullable[bool]] $ConfirmOnHotkeyActivation
    [DscProperty()] [nullable[bool]] $HotkeySound
    [DscProperty()] [nullable[bool]] $VisualIndicator
    [DscProperty()] [nullable[bool]] $AudibleFeedback

    static hidden [string] $SettingsProperty = 'Flags'

    static [System.Enum] GetCurrentFlags() {
        if (-not(DoesRegistryKeyPropertyExist -Path $global:FilterKeysRegistryPath -Name ([FilterKeys]::SettingsProperty))) {
            return [FilterKeysOptions]::None
        } else {
            $FilterKeysFlags = [System.Enum]::Parse('FilterKeysOptions', (Get-ItemPropertyValue -Path $global:FilterKeysRegistryPath -Name ([FilterKeys]::SettingsProperty)))
            return $FilterKeysFlags
        }
    }

    [FilterKeys] Get() {
        $currentFlags = [FilterKeys]::GetCurrentFlags()

        $currentState = [FilterKeys]::new()
        $currentState.Active = $currentFlags.HasFlag([FilterKeysOptions]::Active)
        $currentState.Available = $currentFlags.HasFlag([FilterKeysOptions]::Available)
        $currentState.HotkeyActive = $currentFlags.HasFlag([FilterKeysOptions]::HotkeyActive)
        $currentState.ConfirmOnHotkeyActivation = $currentFlags.HasFlag([FilterKeysOptions]::ConfirmHotkey)
        $currentState.HotkeySound = $currentFlags.HasFlag([FilterKeysOptions]::HotkeySound)
        $currentState.VisualIndicator = $currentFlags.HasFlag([FilterKeysOptions]::VisualIndicator)
        $currentState.AudibleFeedback = $currentFlags.HasFlag([FilterKeysOptions]::AudibleFeedback)

        return $currentState
    }

    [bool] Test() {
        $currentState = $this.Get()

        if (($null -ne $this.Active) -and ($this.Active -ne $currentState.Active)) {
            return $false
        }

        if (($null -ne $this.Available) -and ($this.Available -ne $currentState.Available)) {
            return $false
        }

        if (($null -ne $this.HotkeyActive) -and ($this.HotkeyActive -ne $currentState.HotkeyActive)) {
            return $false
        }

        if (($null -ne $this.ConfirmOnHotkeyActivation) -and ($this.ConfirmOnHotkeyActivation -ne $currentState.ConfirmOnHotkeyActivation)) {
            return $false
        }

        if (($null -ne $this.HotkeySound) -and ($this.HotkeySound -ne $currentState.HotkeySound)) {
            return $false
        }

        if (($null -ne $this.VisualIndicator) -and ($this.VisualIndicator -ne $currentState.VisualIndicator)) {
            return $false
        }

        if (($null -ne $this.AudibleFeedback) -and ($this.AudibleFeedback -ne $currentState.AudibleFeedback)) {
            return $false
        }

        return $true
    }

    [void] Set() {
        # Only make changes if changes are needed
        if (-not $this.Test()) {
            # If a value isn't set in the DSC, it should remain unchanged, to do this we need the current flags
            $flags = [FilterKeys]::GetCurrentFlags()

            if ($null -ne $this.Active) {
                $flags = $this.Active ? $flags -bor [FilterKeysOptions]::Active : $flags -band (-bnot [FilterKeysOptions]::Active)
            }

            if ($null -ne $this.Available) {
                $flags = $this.Available ? $flags -bor [FilterKeysOptions]::Available : $flags -band (-bnot [FilterKeysOptions]::Available)
            }

            if ($null -ne $this.HotkeyActive) {
                $flags = $this.HotkeyActive ? $flags -bor [FilterKeysOptions]::HotkeyActive : $flags -band (-bnot [FilterKeysOptions]::HotkeyActive)
            }

            if ($null -ne $this.ConfirmOnHotkeyActivation) {
                $flags = $this.ConfirmOnHotkeyActivation ? $flags -bor [FilterKeysOptions]::ConfirmHotkey : $flags -band (-bnot [FilterKeysOptions]::ConfirmHotkey)
            }

            if ($null -ne $this.HotkeySound) {
                $flags = $this.HotkeySound ? $flags -bor [FilterKeysOptions]::HotkeySound : $flags -band (-bnot [FilterKeysOptions]::HotkeySound)
            }

            if ($null -ne $this.VisualIndicator) {
                $flags = $this.VisualIndicator ? $flags -bor [FilterKeysOptions]::VisualIndicator : $flags -band (-bnot [FilterKeysOptions]::VisualIndicator)
            }

            if ($null -ne $this.AudibleFeedback) {
                $flags = $this.AudibleFeedback ? $flags -bor [FilterKeysOptions]::AudibleFeedback : $flags -band (-bnot [FilterKeysOptions]::AudibleFeedback)
            }

            # Set the value in the registry
            Set-ItemProperty -Path $global:FilterKeysRegistryPath -Name ([FilterKeys]::SettingsProperty) -Value $flags.GetHashCode()
        }
    }
}

[DscResource()]
class EyeControl {
    [DscProperty(Key)] [Ensure] $Ensure
    hidden [string] $SettingsProperty = 'Enabled'

    [EyeControl] Get() {
        $currentState = [EyeControl]::new()

        if (-not(DoesRegistryKeyPropertyExist -Path $global:EyeControlRegistryPath -Name $this.SettingsProperty)) {
            $currentState.Ensure = [Ensure]::Absent
        } else {
            $currentState.Ensure = [int]((Get-ItemPropertyValue -Path $global:EyeControlRegistryPath -Name $this.SettingsProperty) -eq 1)
        }

        return $currentState
    }

    [bool] Test() {
        return $this.Get().Ensure -eq $this.Ensure
    }

    [void] Set() {
        # Only make changes if changes are needed
        if ($this.Test()) { return }
        if (-not (DoesRegistryKeyPropertyExist -Path $global:EyeControlRegistryPath -Name $this.SettingsProperty)) {
            New-ItemProperty -Path $global:EyeControlRegistryPath -Name $this.SettingsProperty -PropertyType DWord
        }
        Set-ItemProperty -Path $global:EyeControlRegistryPath -Name $this.SettingsProperty -Value $([int]$this.Ensure)
    }
}

#region Functions
function DoesRegistryKeyPropertyExist {
    param (
        [Parameter(Mandatory)]
        [string]$Path,

        [Parameter(Mandatory)]
        [string]$Name
    )

    # Get-ItemProperty will return $null if the registry key property does not exist.
    $itemProperty = Get-ItemProperty -Path $Path -Name $Name -ErrorAction SilentlyContinue
    return $null -ne $itemProperty
}
#endregion Functions

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