Command Line

 


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Command DDEREQ

Function:

Request data from an application.
Syntax:
DDEREQ app topic "item"
appSpecifies the application name to communicate with.
topicSpecifies the subject of the conversation.
itemA string containing the request.
Note:
  • Dynamic data exchange (DDE) is a protocol for interprocess communication.
  • Command DDEREQ will wait, up to 60 seconds, for the requested data before displaying an error message.
  • The data returned by the specified application is placed in the following environment variables :-
    1.DDEREQContains the index value of the last environment variable that contains the data.
    2.DDEREQ.0, DDEREQ.1, ...Contains the requested data.
  • Example on using DDEREQ.
  • Also see commands DDEEXEC and DDEPOKE.

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