typedef struct phonemessage_tag {
DWORD hDevice;
DWORD dwMessageID;
DWORD dwCallbackInstance;
DWORD dwParam1;
DWORD dwParam2;
DWORD dwParam3;
} PHONEMESSAGE, FAR *LPPHONEMESSAGE;
For information about parameter values passed in this structure, see Phone Device Messages.
Version: Use TAPI version 2.0 and later
Header: Declared in tapi.h.