在 powershell 脚本中更改 WIA 扫描仪源

Question

所以我正在使用脚本来自动扫描，一切都很好，除了我的扫描仪总是使用平板扫描，而且我似乎无法将源更改为 Feeder。这是我正在使用的代码

# Create object to access the scanner

$deviceManager = new-object -ComObject WIA.DeviceManager
$device = $deviceManager.DeviceInfos.Item(1).Connect()
# Create object to access the scanned image later
$imageProcess = new-object -ComObject WIA.ImageProcess

# Store file format GUID strings
$wiaFormatBMP  = "{B96B3CAB-0728-11D3-9D7B-0000F81EF32E}"
$wiaFormatPNG  = "{B96B3CAF-0728-11D3-9D7B-0000F81EF32E}"
$wiaFormatGIF  = "{B96B3CB0-0728-11D3-9D7B-0000F81EF32E}"
$wiaFormatJPEG = "{B96B3CAE-0728-11D3-9D7B-0000F81EF32E}"
$wiaFormatTIFF = "{B96B3CB1-0728-11D3-9D7B-0000F81EF32E}"

# Scan the image from scanner as BMP
foreach ($item in $device.Items) {
    $image = $item.Transfer() 
}

# set type to JPEG and quality/compression level
$imageProcess.Filters.Add($imageProcess.FilterInfos.Item("Convert").FilterID)
$imageProcess.Filters.Item(1).Properties.Item("FormatID").Value = $wiaFormatJPEG
$imageProcess.Filters.Item(1).Properties.Item("Quality").Value = 5
$image = $imageProcess.Apply($image)

# Build filepath from desktop path and filename 'Scan 0'
$filename = "$([Environment]::GetFolderPath("Desktop"))\Scan {0}.jpg"

# If a file named 'Scan 0' already exists, increment the index as long as needed
$index = 0
while (test-path ($filename -f $index)) {[void](++$index)}
$filename = $filename -f $index

# Save image to 'C:\Users\<username>\Desktop\Scan {x}'
$image.SaveFile($filename)

# Show image 
& $filename

我只需要更改扫描源，然后保存所有图像即可。

Answer 1

所以经过大量的研究和实验。我终于成功了。

foreach($prop in $device.Properties){
    if( $prop.Name -eq "Document Handling Select"){
        $prop.Value=1
    }
}

但这仍然只给了我 1 张图片，所以我不得不对我之前给出的所有代码使用 while 循环。现在完美运行！

在 powershell 脚本中更改 WIA 扫描仪源

Change WIA scanner source in powershell script

powershell

wia