Gets an asynchronous PrintTicket validation operation context.
HRESULT ValidateAsync( IPrintSchemaAsyncOperation **ppAsyncOperation );
The asynchronous validation operation context.
This method returns an HRESULT value.
To perform the validation operation, call the IPrintSchemaAsyncOperation::Start method to validate the settings of the current PrintTicket object and to pass the resulting PrintTicket to the IPrintSchemaAsyncOperationEvent::Completed event. When the validation operation is completed, or if an error occurs during the validation operation, the IPrintSchemaAsyncOperationEvent::Completed event is fired. This method will not change the settings of the current PrintTicket object.