PHONE_DEVSPECIFIC message
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 |