Capture d'image
Vérifié avec Citrix Workspace App 26.3.10 — mis à jour le 10 juillet 2026
Pris en charge sur : Toutes les plates-formes Citrix Workspace prises en charge
Chemin dans la console GPO
Configuration utilisateur\Modèles d'administration\Composants Citrix\Citrix Workspace\Accès à distance des périphériques clients Description
Utilisez cette stratégie pour activer et limiter l'accès des applications ou bureaux distants aux scanners, webcams et autres périphériques d’acquisition d’images sur la machine cliente.
Registre
HKCU
Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Image Capture Nom de valeur : TWAINAllowed
Activé : TWAINAllowed = true,false
Désactivé : TWAINAllowed = false
Générateur d'exports
BETAConfigurez l'état, la portée et les options, puis générez les sorties .reg, PowerShell, Intune et SCCM — ou ajoutez le paramètre à une collection multi-paramètres.
Ces exports écrivent le registre — ce n'est pas une GPO managée. ⓘ
Fichier .reg
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Capture d'image
; State: Enabled
; Supported on: Toutes les plates-formes Citrix Workspace prises en charge
[HKEY_CURRENT_USER\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Image Capture]
"TWAINAllowed"="true,false"Autres formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Capture d'image
# State: Enabled
# Supported on: Toutes les plates-formes Citrix Workspace prises en charge
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Image Capture'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'TWAINAllowed' -Value 'true,false' -Type StringIntune XML
Aucune correspondance directe Policy CSP / OMA-URI pour cette stratégie. Utilisez l'onglet Intune Remediation, ou importez l'ADMX dans Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Capture d'image
# State: Enabled
# Supported on: Toutes les plates-formes Citrix Workspace prises en charge
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Image Capture' -Name 'TWAINAllowed' -Expected 'true,false' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Capture d'image
# State: Enabled
# Supported on: Toutes les plates-formes Citrix Workspace prises en charge
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Image Capture'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'TWAINAllowed' -Value 'true,false' -Type StringScripts SCCM
# Exported from gporais.com
# Policy: Capture d'image
# State: Enabled
# Supported on: Toutes les plates-formes Citrix Workspace prises en charge
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Capture d'image
# State: Enabled
# Supported on: Toutes les plates-formes Citrix Workspace prises en charge
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Image Capture' -Name 'TWAINAllowed' -Expected 'true,false' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Capture d'image
# State: Enabled
# Supported on: Toutes les plates-formes Citrix Workspace prises en charge
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Image Capture'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'TWAINAllowed' -Value 'true,false' -Type StringVous construisez une collection multi-paramètres ? Ajoutez ce paramètre et générez des exports combinés (.reg, PowerShell, GPO).