PHONE_DEVSPECIFIC message

  • Article

The TSPI PHONE_DEVSPECIFIC message is sent to the PHONEEVENT callback function to notify TAPI about device-specific events occurring at the phone. The meaning of the message and the interpretation of the parameters is implementation defined.


PHONE_DEVSPECIFIC
htPhone = (HTAPIPHONE) hPhoneDevice;
dwMsg = (DWORD) PHONE_DEVSPECIFIC;
dwParam1 = (DWORD) DeviceData1;
dwParam2 = (DWORD) DeviceData2;
dwParam3 = (DWORD) DeviceData3;

Parameters

  • htPhone
    The TAPI opaque object handle to the phone device.

  • dwMsg
    The value PHONE_DEVSPECIFIC.

  • dwParam1
    Device specific.

  • dwParam2
    Device specific.

  • dwParam3
    Device specific.

Remarks

TAPI sends the PHONE_DEVSPECIFIC message to applications in response to receiving this message from a service provider. The htPhone is translated to the appropriate hPhone as the hDevice parameter at the TAPI level. The dwParam1, dwParam2, and dwParam3 parameters are passed through unmodified.

Requirements

TAPI version

 Requires TAPI 2.0 or later

Header

 Tapi.h

See also

PHONEEVENT

TSPI_phoneDevSpecific