Printing Does Not Have Access to My Application Slots
One of the Newton 2.x OS Q&As
Copyright © 1997 Newton, Inc. All Rights Reserved. Newton, Newton Technology, Newton Works, the Newton, Inc. logo, the Newton Technology logo, the Light Bulb logo and MessagePad are trademarks of Newton, Inc. and may be registered in the U.S.A. and other countries. Windows is a registered trademark of Microsoft Corp. All other trademarks and company names are the intellectual property of their respective owners.
For the most recent version of the Q&As on the World Wide Web, check the URL: http://www.newton-inc.com/dev/techinfo/qa/qa.htm
If you've copied this file locally,click here to go to the main Newton Q&A page.
This document was exported on 7/23/97.
Printing Does Not Have Access to My Application Slots (11/27/95)
- Q: Why can't I find my application slots from my print format?
A: Print format does not have direct access to your application context because it is not a child of your application, so it cannot rely on the parent inheritance chain. All viewDefs should be designed so that they do not rely on your application being open or rely on state-specific information in your application. The application may be closed, or the user may continue to work in your application while the print/fax transport is imaging.
Print format does have access to the target variable (it will contain the "body" of the data sent; don't use fields.body). Note that if mulitiple items are sent, the value of target will change as the print format iterates over the list. Try to put the real "data" for the routing in the target using the view method GetTargetInfo.
If, for some reason, you need to access slots from your application, you can access them using GetRoot().(yourAppSymbol).theSlot.