(Windows only)
The name of the application involved in the most recent conversational exchange (for example, the name of a worksheet application such as "EXCEL").
This attribute is supported only for backward compatibility. Use the Component Object Model (COM) instead.
Data type: CHARACTER
Access: Read-only
Applies to: FRAME widget
This attribute applies to any frame in Windows that is a Dynamic Data Exchange (DDE) frame for a DDE conversation.