Get System Topics


3270	5250	VT
Yes	Yes	Yes

The Get System Topics function returns the list of active DDE topics currently supported by Personal Communications. The client application sends the following message to the system topic to retrieve the list of topics that are currently active:

PostMessage( hServerWnd,
             WM_DDE_REQUEST,
             hClientWnd,
             MAKELPARAM(cfFormat, aTOPICS) );

where:

cfFormat: Identifies the DDE format for the data item requested. The value used is CF_TEXT.
aTOPICS: Identifies topics as the data item requested.