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DDE.POKE built-in procedure

This procedure sends data to a DDE server application.

Syntax

DDE.POKE (convid, item, data, dataformat, timeout)

Parameter

Type

Description

convid
PLS_INTEGER

DDE conversion identifier that is returned by DDE.INITIATE.

item
VARCHAR2

Data item name to which the data is to be sent.

data
VARCHAR2

Data buffer to send.

dataformat
PLS_INTEGER

Format of outgoing data.

timeout
PLS_INTEGER

Timeout duration in milliseconds.

The value of Item depends on what values are supported by the DDE server application on the current conversation topic.

The Microsoft Windows predefined data formats can be used for DataFormat. A user-defined format that is registered with DDE.GETFORMATNUM can also be used, provided the DDE server application recognizes the format. It is your responsibility to ensure that the DDE server application processes the specified data format.

Timeout specifies the maximum length of time, in milliseconds, that this routine waits for a response from the DDE server application. If you specify an invalid number, such as negative number, then the default value of 1000 ms is used. The duration of the timeout depends on machine configuration and the DDE server application.

Example


DECLARE
 ConvID PLS_INTEGER;
BEGIN
  /* Open a DDE conversation with Microsoft Excel for Windows on
    topic abc.xls. */ ConvID = DDE.INITIATE('EXCEL', 'C:\abc.xls');
  /* Send data "foo" to cell at row 2, column 2. */
   DDE.POKE(ConvID, 'R2C2', 'foo', DDE.CF_TEXT, 1000);
END;

See also

About the DDE built-in package

DDE built-in package

DDE built-in exceptions