LINEMESSAGE

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 lineInitializeEx. 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 Messages.

QuickInfo

  Version: Use TAPI version 2.0 and later
  Header: Declared in tapi.h.