Newton Developer Technical Information: Newton Programmer's Guide: 2.1 OS Addendum /

Chapter 3 - Word Processing Views / About protoTXView And the View System

About Storing protoTXView Documents

You can store *protoTXView word-processing documents in RAM-based soup objects, or you can store a word-processing document as a virtual binary object (VBO). The VBO is a "black-box" representation of the data in your view. You can perform a limited set of operations on these objects, as follows:

• You can use the *protoTXView:*Externalize method to save the contents of a word-processing view to a VBO.
• You can use the *protoTXView:*Internalize method to replace the contents of a word-processing view with the data stored in a VBO that was previously stored with a call to *protoTXView:*Externalize.
• You can call protoTXView:IsModified to determine if your view has changed since the most recent call to *protoTXView:*Internalize or *protoTXView:*Externalize.
• You can use protoTXViewFinder methods to search for text in a VBO without creating a word-processing view.