DDE procedures allow the application to communicate and control other Windows applications that support the Microsoft Dynamic Data Exchange protocol (DDE). The procedures allow to initiate conversation between client and server applications and issue DDE transaction used to pass data or commands between the applications.
Through its DDE functions, ATEasy exchanges data with other Windows applications. In DDE terms, a conversation is the interaction between a client and a server application. Conversations are always initiated by the client application. ATEasy is a client application and its DdeInitiate function initiates DDE conversations. The DDE Server application must be running before any conversation is initiated. After initiating a conversation, the client application can issue DDE transactions. For ATEasy, DDE transactions involve sending a command to the Server via DdeExecute, sending data to the Server via DdePoke, or accepting data from the Server via DdeRequest. After the DDE Transactions are completed, DdeTerminate is called to terminate the conversation.
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