DDEExecute executes a DDE
command.
Syntax
CALL ui.Interface.frontCall("WINDDE","DDEExecute",
  [ program, document, command, encoding ], [result] )
 
- program is the name of the DDE application.
 
- document is the document that is to be used.
 
- command is the command that needs to be executed.
 
- encoding is an optional parameter. It allows to force the encoding to use
between ASCII and wide char/unicode. When not specified, WinDDE will try to retrieve the correct
encoding by itself. Possible values are: "UNICODE", "ASCII"
 
- Refer to the program documentation to know the syntax of
command.
 
- result is an integer variable receiving the status.
 
- result is TRUE if the function succeeded, FALSE otherwise.
 
- If the function failed, use DDEError to get the
description of the error.