/// <summary>
/// The background task is first invoked here in the standard Run method
/// </summary>
/// <param name="taskInstance">This contains the TriggerDetails object, which is actually Windows.Graphics.Printing.Workflow.WorkflowTriggerDetails</param>
public void Run(IBackgroundTaskInstance taskInstance)
{
// Take out a deferral here and complete once all the callbacks are done
runDeferral = taskInstance.GetDeferral();
// Associate a cancellation handler with the background task. DisableAppxManifestItemPackageContentValidation
taskInstance.Canceled += new BackgroundTaskCanceledEventHandler(OnCanceled);
try
{
PrintWorkflowTriggerDetails workflowTriggerDetails = taskInstance.TriggerDetails as PrintWorkflowTriggerDetails;
// Get the activation arguments
PrintWorkflowBackgroundSession sessionManager = workflowTriggerDetails.PrintWorkflowSession;
// The workflow details object has the workflow session manager,
// which is unique to this print job and use it to add the event handler callback routines
sessionManager.SetupRequested += OnSetupRequested;
// XPS OM printing scenario
sessionManager.Submitted += OnXpsOMPrintSubmitted;
// Tell the event source that it can start
sessionManager.Start();
}
finally
{
// Do something, like logging
}
}
/// <summary>
/// The background task is first invoked here in the standard Run method
/// </summary>
/// <param name="taskInstance">This contains the TriggerDetails object, which is actually Windows.Graphics.Printing.Workflow.WorkflowTriggerDetails</param>
public void Run(IBackgroundTaskInstance taskInstance)
{
// Take out a deferral here and complete once all the callbacks are done
runDeferral = taskInstance.GetDeferral();
if (1 == System.Threading.Interlocked.Increment(ref TaskRefCount))
{
AllTasksDoneEvent.Reset();
}
// Associate a cancellation handler with the background task.
taskInstance.Canceled += new BackgroundTaskCanceledEventHandler(OnCanceled);
try
{
PrintWorkflowTriggerDetails workflowTriggerDetails = taskInstance.TriggerDetails as PrintWorkflowTriggerDetails;
// Get the activation arguments
PrintWorkflowBackgroundSession sessionManager = workflowTriggerDetails.PrintWorkflowSession;
// The workflow details object has the workflow session manager,
// which is unique to this print job and use it to add the event handler callback routines
sessionManager.SetupRequested += OnSetupRequested;
// XPS OM printing scenario
// sessionManager.Submitted += OnXpsOMPrintSubmitted;
sessionManager.Submitted += OnXpsOMPrintSubmittedAsync;
// Tell the event source that it can start
// This call blocks until all the workflow callbacks complete
sessionManager.Start();
}
finally
{
// At this point, all of the callbacks have completed, so it's safe
// to decrement the workflow task ref count and possibly signal the
// application that it's safe to suspend.
if (0 == System.Threading.Interlocked.Decrement(ref TaskRefCount))
{
AllTasksDoneEvent.Set();
}
}
}
