WSD 端口监视器的双向扩展示例

项目
06/15/2023

下面的代码示例是一个示例 XML 文件，该文件扩展了适用于设备的 Web 服务的双向通信架构 (WSD) 端口监视器：

<?xml version='1.0'?>
<bidi:Definition xmlns:bidi='https://schemas.microsoft.com/windows/2005/03/printing/bidi'>

  <Schema xmlns:nprt='https://schemas.microsoft.com/windows/2006/08/wdp/print'>
    <Property name='Printer'>
      <Property name='DeviceInfo'>
        <Value name='FriendlyName' query='nprt:PrinterDescription' filter='nprt:PrinterDescription/nprt:PrinterName' type='BIDI_STRING' xmllang='true'/>
        <Value name='Location' query='nprt:PrinterDescription' filter='nprt:PrinterDescription/nprt:PrinterLocation' type='BIDI_STRING' xmllang='true'/>
        <Value name='Comment' query='nprt:PrinterDescription' filter='nprt:PrinterDescription/nprt:PrinterInfo' type='BIDI_STRING' xmllang='true'/>
        <Value name='IEEE1284DeviceId' query='nprt:PrinterDescription' filter='nprt:PrinterDescription/nprt:DeviceId' type='BIDI_STRING'/>
      </Property>
      <Property name='Configuration'>
        <Property name='Memory'>
          <Value name='Size' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Storage/nprt:StorageEntry[nprt:Type="RAM"]/nprt:Size' type='BIDI_INT' drvPrinterEvent='true'/>
          <Value name='PS' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Storage/nprt:StorageEntry[nprt:Type="PSMemory"]/nprt:Size' type='BIDI_INT' drvPrinterEvent='true'/>
        </Property>
        <Property name='HardDisk'>
          <Installed name='Installed' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Storage/nprt:StorageEntry[nprt:Type="HardDisk"]' drvPrinterEvent='true'/>
          <Value name='Capacity' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Storage/nprt:StorageEntry[nprt:Type="HardDisk"]/nprt:Size' type='BIDI_INT' drvPrinterEvent='true'/>
          <Value name='FreeSpace' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Storage/nprt:StorageEntry[nprt:Type="HardDisk"]/nprt:Free' type='BIDI_INT' drvPrinterEvent='true'/>
        </Property>
        <Property name='DuplexUnit'>
          <Value name='Installed' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Finishings/nprt:DuplexerInstalled' type='BIDI_BOOL' optional='true' drvPrinterEvent='true'>false</Value>
        </Property>
      </Property>
      <Property name='Consumables'>
        <Parameter name='$Name$' parameter='Name' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Consumables/nprt:ConsumableEntry/@nprt:Name'>
          <Installed name='Installed' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Consumables/nprt:ConsumableEntry[@nprt:Name="$Name$"]' drvPrinterEvent='true'/>
          <Value name='Type' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Consumables/nprt:ConsumableEntry[@nprt:Name="$Name$"]/nprt:Type' type='BIDI_STRING' drvPrinterEvent='true'/>
          <Value name='Color' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Consumables/nprt:ConsumableEntry[@nprt:Name="$Name$"]/nprt:Color' type='BIDI_STRING' drvPrinterEvent='true'/>
          <Value name='Level' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Consumables/nprt:ConsumableEntry[@nprt:Name="$Name$"]/nprt:Level' type='BIDI_INT' drvPrinterEvent='true'/>
          <Value name='Model' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Consumables/nprt:ConsumableEntry[@nprt:Name="$Name$"]/nprt:Model' type='BIDI_STRING' drvPrinterEvent='true'/>
        </Parameter>
      </Property>
      <Property name='Layout'>
        <Property name='NumberUp'>
          <Property name='PagesPerSheet'>
            <Value name='CurrentValue' query='nprt:DefaultPrintTicket' filter='nprt:DefaultPrintTicket/nprt:DocumentProcessing/nprt:NumberUp/nprt:PagesPerSheet' type='BIDI_INT' drvPrinterEvent='true'/>
            <List name='Supported' query='nprt:PrinterCapabilities' filter='nprt:PrinterCapabilities/nprt:JobValues/nprt:DocumentProcessing/nprt:NumberUp/nprt:PagesPerSheet/nprt:AllowedValue' drvPrinterEvent='true'/>
          </Property>
          <Property name='Direction'>
            <Value name='CurrentValue' query='nprt:DefaultPrintTicket' filter='nprt:DefaultPrintTicket/nprt:DocumentProcessing/nprt:NumberUp/nprt:Direction' type='BIDI_STRING' drvPrinterEvent='true'/>
            <List name='Supported' query='nprt:PrinterCapabilities' filter='nprt:PrinterCapabilities/nprt:JobValues/nprt:DocumentProcessing/nprt:NumberUp/nprt:Direction/nprt:AllowedValue' drvPrinterEvent='true'/>
          </Property>
        </Property>
        <Property name='Orientation'>
          <Value name='CurrentValue' query='nprt:DefaultPrintTicket' filter='nprt:DefaultPrintTicket/nprt:DocumentProcessing/nprt:Orientation' type='BIDI_STRING' drvPrinterEvent='true'/>
          <List name='Supported' query='nprt:PrinterCapabilities' filter='nprt:PrinterCapabilities/nprt:JobValues/nprt:DocumentProcessing/nprt:Orientation/nprt:AllowedValue' drvPrinterEvent='true'/>
        </Property>
        <Property name='InputBins'>
          <Parameter name='$TrayName$' parameter='TrayName' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:InputBins/nprt:InputBinEntry/@nprt:Name'>
            <Installed name='Installed' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:InputBins/nprt:InputBinEntry[@nprt:Name="$TrayName$"]' drvPrinterEvent='true'/>
            <Value name='MediaSize' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:InputBins/nprt:InputBinEntry[@nprt:Name="$TrayName$"]/nprt:MediaSize' type='BIDI_STRING' drvPrinterEvent='true'/>
            <Value name='MediaType' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:InputBins/nprt:InputBinEntry[@nprt:Name="$TrayName$"]/nprt:MediaType' type='BIDI_STRING' drvPrinterEvent='true'/>
            <Value name='MediaColor' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:InputBins/nprt:InputBinEntry[@nprt:Name="$TrayName$"]/nprt:MediaColor' type='BIDI_STRING' drvPrinterEvent='true'/>
            <Value name='FeedDirection' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:InputBins/nprt:InputBinEntry[@nprt:Name="$TrayName$"]/nprt:FeedDirection' type='BIDI_STRING' drvPrinterEvent='true'/>
            <Value name='Capacity' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:InputBins/nprt:InputBinEntry[@nprt:Name="$TrayName$"]/nprt:Capacity' type='BIDI_INT' drvPrinterEvent='true'/>
            <Value name='Level' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:InputBins/nprt:InputBinEntry[@nprt:Name="$TrayName$"]/nprt:Level' type='BIDI_INT' drvPrinterEvent='true'/>
          </Parameter>
        </Property>
      </Property>
      <Property name='Finishing'>
        <Value name='CollationSupported' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Finishings/nprt:CollationSupported' type='BIDI_BOOL' optional='true' drvPrinterEvent='true'>false</Value>
        <Value name='JogOffsetSupported' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Finishings/nprt:JogOffsetSupported' type='BIDI_BOOL' optional='true' drvPrinterEvent='true'>false</Value>
        <Property name='Staple'>
          <Value name='Installed' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Finishings/nprt:StaplerInstalled' type='BIDI_BOOL' optional='true' drvPrinterEvent='true'>false</Value>
          <Property name='Location'>
            <Value name='CurrentValue' query='nprt:DefaultPrintTicket' filter='nprt:DefaultPrintTicket/nprt:JobProcessing/nprt:JobFinishings/nprt:Staple/nprt:Location' type='BIDI_STRING' drvPrinterEvent='true'/>
            <List name='Supported' query='nprt:PrinterCapabilities' filter='nprt:PrinterCapabilities/nprt:JobValues/nprt:JobProcessing/nprt:JobFinishings/nprt:Staple/nprt:Location/nprt:AllowedValue' drvPrinterEvent='true'/>
          </Property>
          <Property name='Angle'>
            <Value name='CurrentValue' query='nprt:DefaultPrintTicket' filter='nprt:DefaultPrintTicket/nprt:JobProcessing/nprt:JobFinishings/nprt:Staple/nprt:Angle' type='BIDI_STRING' drvPrinterEvent='true'/>
            <List name='Supported' query='nprt:PrinterCapabilities' filter='nprt:PrinterCapabilities/nprt:JobValues/nprt:JobProcessing/nprt:JobFinishings/nprt:Staple/nprt:Angle/nprt:AllowedValue' drvPrinterEvent='true'/>
          </Property>
        </Property>
        <Property name='HolePunch'>
          <Value name='Installed' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:Finishings/nprt:HolePunch/nprt:HolePunchInstalled' type='BIDI_BOOL' optional='true' drvPrinterEvent='true'>false</Value>
          <Property name='Pattern'>
            <Value name='CurrentValue' query='nprt:DefaultPrintTicket' filter='nprt:DefaultPrintTicket/nprt:JobProcessing/nprt:JobFinishings/nprt:HolePunch/nprt:Pattern' type='BIDI_STRING' drvPrinterEvent='true'/>
            <List name='Supported' query='nprt:PrinterCapabilities' filter='nprt:PrinterCapabilities/nprt:JobValues/nprt:JobProcessing/nprt:JobFinishings/nprt:HolePunch/nprt:Pattern/nprt:AllowedValue' drvPrinterEvent='true'/>
          </Property>
          <Property name='Location'>
            <Value name='CurrentValue' query='nprt:DefaultPrintTicket' filter='nprt:DefaultPrintTicket/nprt:JobProcessing/nprt:JobFinishings/nprt:HolePunch/nprt:Edge' type='BIDI_STRING' drvPrinterEvent='true'/>
            <List name='Supported' query='nprt:PrinterCapabilities' filter='nprt:PrinterCapabilities/nprt:JobValues/nprt:JobProcessing/nprt:JobFinishings/nprt:HolePunch/nprt:Edge/nprt:AllowedValue' drvPrinterEvent='true'/>
          </Property>
        </Property>
        <Property name='OutputBins'>
          <Parameter name='$TrayName$' parameter='TrayName' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:OutputBins/nprt:OutputBinEntry/@nprt:Name'>
            <Installed name='Installed' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:OutputBins/nprt:OutputBinEntry[@nprt:Name="$TrayName$"]' drvPrinterEvent='true'/>
            <Value name='Capacity' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:OutputBins/nprt:OutputBinEntry[@nprt:Name="$TrayName$"]/nprt:Capacity' type='BIDI_INT' drvPrinterEvent='true'/>
            <Value name='Level' query='nprt:PrinterConfiguration' filter='nprt:PrinterConfiguration/nprt:OutputBins/nprt:OutputBinEntry[@nprt:Name="$TrayName$"]/nprt:Level' type='BIDI_INT' drvPrinterEvent='true'/>
          </Parameter>
        </Property>
      </Property>
      <Property name='Status'>
        <Property name='Summary'>
          <Value name='State' query='nprt:PrinterStatus' filter='nprt:PrinterStatus/nprt:PrinterState' type='BIDI_STRING'/>
          <Value name='StateReason' query='nprt:PrinterStatus' filter='nprt:PrinterStatus/nprt:PrinterPrimaryStateReason' type='BIDI_STRING'/>
        </Property>
        <Property name='Detailed'>
          <Parameter name='Event$EventIndex$' parameter='EventIndex' query='nprt:PrinterStatus' filter='nprt:PrinterStatus/nprt:ActiveCondition/nprt:DeviceCondition/@nprt:Id'>
            <Value name='Name' query='nprt:PrinterStatus' filter='nprt:PrinterStatus/nprt:ActiveCondition/nprt:DeviceCondition[@nprt:Id="$EventIndex$"]/nprt:Name' type='BIDI_STRING'/>
            <Value name='Severity' query='nprt:PrinterStatus' filter='nprt:PrinterStatus/nprt:ActiveCondition/nprt:DeviceCondition[@nprt:Id="$EventIndex$"]/nprt:Severity' type='BIDI_STRING'/>
            <Property name='Component'>
              <Value name='Group' query='nprt:PrinterStatus' filter='nprt:PrinterStatus/nprt:ActiveCondition/nprt:DeviceCondition[@nprt:Id="$EventIndex$"]/nprt:Component/nprt:Group' type='BIDI_STRING'/>
              <Value name='Name' query='nprt:PrinterStatus' filter='nprt:PrinterStatus/nprt:ActiveCondition/nprt:DeviceCondition[@nprt:Id="$EventIndex$"]/nprt:Component/nprt:Name' type='BIDI_STRING'/>
            </Property>
          </Parameter>
        </Property>
      </Property>
    </Property>
  </Schema>
  <PortStatus>
    <Status>
      <Keyword>None</Keyword>
      <Code>0</Code>
      <Severity>0</Severity>
    </Status>
    <Status>
      <Keyword>AttentionRequired</Keyword>
      <Code>8</Code>
      <Severity>1</Severity>
    </Status>
    <Status>
      <Keyword>DoorOpen</Keyword>
      <Code>7</Code>
      <Severity>1</Severity>
    </Status>
    <Status>
      <Keyword>MarkerFailure</Keyword>
      <ResourceIdOffset>0</ResourceIdOffset>
      <Severity>1</Severity>
    </Status>
    <Status>
      <Keyword>MarkerSupplyLow</Keyword>
      <Code>10</Code>
      <Severity>2</Severity>
    </Status>
    <Status>
      <Keyword>MarkerSupplyEmpty</Keyword>
      <Code>6</Code>
      <Severity>1</Severity>
    </Status>
    <Status>
      <Keyword>MediaEmpty</Keyword>
      <Code>3</Code>
      <Severity>1</Severity>
    </Status>
    <Status>
      <Keyword>MediaJam</Keyword>
      <Code>2</Code>
      <Severity>1</Severity>
    </Status>
    <Status>
      <Keyword>MediaLow</Keyword>
      <ResourceIdOffset>1</ResourceIdOffset>
      <Severity>2</Severity>
    </Status>
    <Status>
      <Keyword>MediaNeeded</Keyword>
      <Code>5</Code>
      <Severity>1</Severity>
    </Status>
    <Status>
      <Keyword>OutputAreaAlmostFull</Keyword>
      <ResourceIdOffset>2</ResourceIdOffset>
      <Severity>2</Severity>
    </Status>
    <Status>
      <Keyword>OutputAreaFull</Keyword>
      <Code>4</Code>
      <Severity>1</Severity>
    </Status>
    <Status>
      <Keyword>Paused</Keyword>
      <ResourceIdOffset>3</ResourceIdOffset>
      <Severity>3</Severity>
    </Status>
  </PortStatus>
</bidi:Definition>

架构扩展的说明

前面的示例 bidi 扩展文件包含根元素 <Definition>，其中包含两个主要部分： <架构>（其中放置了 bidi 架构扩展）和 <PortStatus>（驱动程序将 WSD 状态映射到 PORT_INFO_3 端口状态结构 (Windows SDK 文档) 中所述）。

架构扩展中使用的任何命名空间都必须在 Schema 元素中定义。扩展处理不会识别在较低级别元素中定义的命名空间。在较低级别的元素中定义命名空间将导致扩展文件验证失败。

<Definition>
  <Schema>...</Schema>
  <PortStatus>...</PortStatus>
</Definition>

此扩展文件中的每个 bidi 查询包括：

描述如何从 WSD 数据撰写 bidi 数据的算法;可以使用 Const、 Installed、 List 和 Value 这四个构造定义算法。
描述如何获取 WSD 数据的 WSD 查询参数。
XPath 筛选器，用于筛选 WSD 架构中的特定 XML 元素，该架构将用于撰写 bidi 结果。

参数构造

<前面的示例 bidi 扩展文件中使用的 Parameter> 元素定义了一个变量属性，该属性可以采用不同的值 (例如 TopBin 或 BottomBin) ，以便可以进行以下形式的查询：

\Printer.Layout.InputBins.TopBin:Installed
\Printer.Layout.InputBins.BottomBin:Installed

以下示例查询演示了对上述 bidi 扩展中定义的自定义属性的用法：

<Property name='Printer'>
  <Property name='Layout'>
    <Property name='InputBins'>
      <Parameter name='$TrayName$'
        parameter='TrayName'
        query='wprt:PrinterConfiguration'
        filter='wprt:PrinterConfiguration/wprt:InputBins/wprt:InputBinEntry/wprt:Name'>
        <Installed
          name='Installed'
          query='wprt:PrinterConfiguration'
          filter='wprt:PrinterConfiguration/wprt:InputBins/wprt:InputBinEntry[wprt:Name="$TrayName$"]'/>
      </Parameter>
    </Property>
  </Property>
</Property>

前面的示例生成以下查询：

\Printer.Layout.InputBins.[TrayName]:Installed

通过

WSD 端口监视器的双向扩展示例

架构扩展的说明

参数构造

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