LINEMESSAGE  20HPOW

typedef struct linemessage_tag { 

    DWORD  hDevice;

    DWORD  dwMessageID;

    DWORD  dwCallbackInstance;

    DWORD  dwParam1;

   DWORD  dwParam2;

    DWORD  dwParam3;

} LINEMESSAGE, FAR *LPLINEMESSAGE;

Members

hDevice

A handle to either a line device or a call. The nature of this handle (line handle or call handle) can be determined by the context provided by dwMessageID.

dwMessageID

A line or call device message.

dwCallbackInstance

Instance data passed back to the application, which was specified by the application in lineInitializeEx18GE4YT. This DWORD is not interpreted by TAPI.

dwParam1

A parameter for the message.

dwParam2

A parameter for the message.

dwParam3

A parameter for the message.

Remarks

For information about parameter values passed in this structure, see Line Device Messages1SIHVUU.