private/readQRCode.ps1
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function Test-QRCodeReading { [CmdletBinding()] param( [Parameter(Mandatory, ValueFromPipeline, ValueFromPipelineByPropertyName)] [ValidateScript({ if ([string]::IsNullOrEmpty($_)) { throw "Path cannot be empty" } if (-not (Test-Path $_)) { throw "File not found: $_" } return $true })] [Alias('FullName')] [string]$Path, [Parameter()] [switch]$IncludeMetadata, [Parameter()] [switch]$AllResults ) begin { Write-Verbose "Starting QR code reading test" # Load ZXing.Net assembly if not already loaded if (-not ('ZXing.BarcodeReader' -as [type])) { Write-Verbose "Loading ZXing.Net assembly" $zxingPath = Join-Path $PSScriptRoot '..\lib\zxing.dll' if (-not (Test-Path $zxingPath)) { throw "ZXing library not found at: $zxingPath" } Add-Type -Path $zxingPath Write-Verbose "ZXing.Net assembly loaded successfully" } } process { try { Write-Verbose "Processing image: $Path" # Create reader with options $reader = [ZXing.BarcodeReader]::new() $reader.Options.TryHarder = $true # Set QR code as the only format to look for $formats = [System.Collections.Generic.List[ZXing.BarcodeFormat]]::new() $formats.Add([ZXing.BarcodeFormat]::QR_CODE) $reader.Options.PossibleFormats = $formats # Read image file $bitmap = [System.Drawing.Bitmap]::FromFile($Path) try { Write-Verbose "Image dimensions: $($bitmap.Width)x$($bitmap.Height)" # Try to decode the QR code if ($AllResults) { Write-Verbose "Attempting to decode all QR codes in image" $results = $reader.DecodeMultiple($bitmap) } else { Write-Verbose "Attempting to decode single QR code" $results = @($reader.Decode($bitmap)) } if (-not $results) { throw "No QR code found in image" } # Process each result foreach ($result in $results) { $output = [ordered]@{ Text = $result.Text } if ($IncludeMetadata) { Write-Verbose "Including metadata for QR code" $output['Format'] = $result.BarcodeFormat $output['Encoding'] = $result.TextEncoding $output['ErrorCorrection'] = $result.ResultMetadata['ERROR_CORRECTION_LEVEL'] } [PSCustomObject]$output } } finally { $bitmap.Dispose() } } catch { Write-Error -ErrorRecord $_ } } end { Write-Verbose "QR code reading test completed" } } |