#include <ddeml.h>
typedef struct tagHSZPAIR { /* hp */
HSZ hszSvc;
HSZ hszTopic;
} HSZPAIR;
The HSZPAIR structure contains a dynamic data exchange (DDE) service name and topic name. A DDE server application can use this structure during an XTYP_WILDCONNECT transaction to enumerate the service/topic name pairs that it supports.
hszSvc
Identifies a service name.
hszTopic
Identifies a topic name.