Use the General tab to specify details about communicating with the DDE client application.
Page 1 Settings
When you select the Update List push button, the drop-down list
is filled with the currently active DDE servers in the system. You can
then select from the list of servers provided in the drop-down list.
![]() | In the Windows environment, to query the set of active DDE servers, you must select Client in same application as server on the DDE Server - Settings window. However, if you the DDE client application and DDE server application are in different application executables, then you must deselect Client in same application as server on the DDE Server - Settingswindow before packaging your application. |
When you select Update List, the drop-down list is filled with the topics supported by the server you selected in the Server name list drop-down list. The server must be running in order for the topics to be added to the drop-down list.
The items you add to this list appear as part of the public interface of the DDE Client part.
You can use the push buttons along the bottom to help manage the list of items.
If you do not have an item selected in the table, the Apply push button is not available.
The format you select in this field is applied to the selected row in the table. Any new items added as rows to the table use the format specified in this field.
Because the formats for each item can typically not be retreived, the format is set to string. You can then change the formats of the items to be what the server requires. Refer to the specific server application documentation for more information on the formats of the items.
Page 2 Settings
When setting the time-out value, consider the fact that DDE conversations are synchronous.
If a time out occurs, the lastTransactionError attribute contains the time-out error.