PrintExtensionContext Class

Definition

public ref class PrintExtensionContext abstract sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Devices.Printers.Extensions.ExtensionsContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class PrintExtensionContext final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Devices.Printers.Extensions.ExtensionsContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public static class PrintExtensionContext

Public Class PrintExtensionContext

Inheritance

Object Platform::Object IInspectable PrintExtensionContext

Attributes

ContractVersionAttribute MarshalingBehaviorAttribute

Windows requirements

Remarks

The following JavaScript code snippet retrieves the PrinterExtensionContext using a DeviceInformation ID, and then uses the context to create a helper object:

// This function runs when the user taps the Back button
function getInkStatus(deviceInformationId) {
    var responseString;
    try {
        var context = Windows.Devices.Printers.Extensions.
            PrintExtensionContext.fromDeviceId(deviceInformationId);
        var helper = new Microsoft.Samples.Printing.WwaDca.
            PrintHelperClass(context);
        var responseString = helper.getInkLevel(1);
    } catch (e) {
        responseString = "deviceInformationId: " + deviceInformationId + 
            " Message: " + e.message;
    }
    return responseString
}

For more information about using the PrinterExtensionContext class, see the UWP device apps for printers topic on the Hardware Dev Center.

Methods

Applies to

See also

• DeviceInformation class
• UWP device apps for printers