PrintTaskConfiguration Class

Reference

Definition

Namespace:: Windows.Devices.Printers.Extensions

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Edit

Allows a client to retrieve the print task extension context, and also to add an event handler to the print task.

public ref class PrintTaskConfiguration sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Devices.Printers.Extensions.ExtensionsContract, 65536)]
class PrintTaskConfiguration final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Devices.Printers.Extensions.ExtensionsContract), 65536)]
public sealed class PrintTaskConfiguration

Public NotInheritable Class PrintTaskConfiguration

Inheritance: Object Platform::Object IInspectable PrintTaskConfiguration

Attributes: ContractVersionAttribute

Windows requirements

Device family	Windows Desktop Extension SDK (introduced in 10.0.10240.0)
API contract	Windows.Devices.Printers.Extensions.ExtensionsContract (introduced in v1.0)

Remarks

When a UWP app is invoked from More settings in the print window, the activation event provides an event argument of type Windows.UI.WebUI.WebUIPrintTaskSettingsActivatedEventArgs that exposes a property, Configuration, for controlling the printer. This property provides an object of type PrintTaskConfiguration that provides access to the print task extension context, and also allows you to add an event handler to update the print ticket.

The following JavaScript code snippet demonstrates how to access the PrintTaskConfiguration object, and then use that to access the PrinterExtensionContext property.

var configuration;
var printerExtesionContext;

function displayPrintSettings() {

    if (!configuration) {
        sdkSample.displayError("Configuration argument is null");
        return;
    }

    printerExtesionContext = configuration.printerExtensionContext;
    printHelper = new Microsoft.Samples.Printing.WwaDca.
        PrintHelperClass(printerExtensionContext);    

    var feature = "PageOrientation";

    // if printer's capabilities include this feature.
    if (!printHelper.featureExists(feature)) {
        continue;
    }

    // Get the selected option for this feature in the current
    // context's print ticket.
    var selectedOption = printHelper.getSelectedOptionIndex(feature);

    // Get the array of options in the current context’s print ticket
    var optionIndex = printHelper.getOptionInfo(feature, "Index"),
    var optionNames = printHelper.getOptionInfo(feature, 
        "DisplayName"),

    var selectedName;
    for (var i = 0; i < optionIndex.length; i++) {
        if (optionIndex[i] === selectedOption)
           selectedName = optionNames[i];

    // logic to display the orientation string here
}

Properties

PrinterExtensionContext

Gets the context for the print task extension.

Events

SaveRequested

Raised by the print window for your app to notify the device app that the print ticket must be updated.

Applies to

Delen via