PrintExtensionContext PrintExtensionContext PrintExtensionContext PrintExtensionContext Class


Provides the context for the printer extension object.

public : static class PrintExtensionContext
public static class PrintExtensionContext
Public Static Class PrintExtensionContext
// This class does not provide a public constructor.
Windows 10 requirements
Device family
Windows Desktop Extension SDK (introduced v10.0.10240.0)
API contract
Windows.Devices.Printers.Extensions.ExtensionsContract (introduced v1)


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.
        var helper = new Microsoft.Samples.Printing.WwaDca.
        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.


FromDeviceId(String) FromDeviceId(String) FromDeviceId(String) FromDeviceId(String)

Gets the context for the printer extension object based on the DeviceInformation ID.

public : static Platform::Object FromDeviceId(Platform::String deviceId)
public static object FromDeviceId(String deviceId)
Public Static Function FromDeviceId(deviceId As String) As object
var object = Windows.Devices.Printers.Extensions.PrintExtensionContext.fromDeviceId(deviceId);
Platform::String String String String

The device information ID for the print device.

Platform::Object object object object

Pointer to the context.

See Also

See Also