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DDEError (Function) In french: DDEErreur Returns the runtime status report of a DDE function. Indeed, most of the DDE functions return True if successful and False if a problem occurs. DDEError returns the error details. You can also use ErrorInfo to get the error code. Caution: DDEError and ErrorInfo do not return the same error codes if a DDE error occurs. Indeed, DDEError returns the Windows error code while ErrorInfo returns an error code specific to WINDEV or WEBDEV.
// Connection
MyConnection = DDEConnect("Excel", Subject)
// Error occurred?
IF MyConnection = 0 THEN
SWITCH DDEError()
CASE 1: Error("Initialization error")
CASE 6: Error("The recipient is unknown")
END
END
Syntax
<Result> = DDEError([<Connection identifier>])
<Result>: Integer Code of last DDE error that occurred on the specified DDE connection. | | | -1 | Syntax error (client = *, subject = *, etc.) | | 1 | Initialization error | | 2 | The program is already stopped | | 3 | The program currently run is started while it is still registered toward WINDEV/WEBDEV (the program did not call DDEDisconnect during a previous execution) | | 4 | Too many programs are registered toward WDDE.DLL (up to 50 programs) | | 5 | Too many messages are found in memory (up to 400 messages) | | 6 | Unknown recipient | | 7 | No message to retrieve: the pile of messages is empty for the requested subject | | 8 | Insufficient memory to start the server | | 9 | The program called is unknown (invalid path) | | 10 | The program called is already run | | 11 | Error while starting the program | | 12 | Error during a memory allocation | | 13 | Error during the DDE initialization | | 14 | Error while connecting to the application (server) | | 15 | Error during the DDE transaction | | 16 | Error while retrieving a DDE data |
<Connection identifier>: Optional integer Connection identifier, returned by DDEConnect. If this parameter is not specified, DDEError is using the last connection handled.
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