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Programming Interfaces
External Program Interfaces : Windows Dynamic Data Exchange : Exchanging data in conversations : Demand-driven exchanges
Demand-driven exchanges
In a demand-driven exchange, the OpenEdge client sends data to or requests data from the server, and waits for each exchange to complete before continuing. The DDE EXECUTE, DDE REQUEST, and DDE SEND statements all invoke demand-driven exchanges.
* Execute exchanges
* Request and send exchanges