So far we've been using string as the format for data exchange. This is the format you will normally use when exchanging data with non-VA Smalltalk applications.

The purpose of this section is to demonstrate the use of the smalltalk object format. This format can only be used when both the DDE server and DDE client are VA Smalltalk applications. We will build a shopping list application that exchanges data between two separate visual parts, by using the smalltalk object format.