TAPIERR_ Constants
The TAPIERR_ constants provide information concerning function execution failures.
- TAPIERR_CONNECTED
- The operation can not be performed while the call state
- TAPIERR_DESTBUSY
- The call destination is busy.
- TAPIERR_DESTNOANSWER
- The call destination did not answer.
- TAPIERR_DESTUNAVAIL
- The call destination is not available.
- TAPIERR_DEVICECLASSUNAVAIL
- The device class needed is not available.
- TAPIERR_DEVICEIDUNAVAIL
- The device identifier needed is not available.
- TAPIERR_DEVICEINUSE
- The needed device is in use.
- TAPIERR_DROPPED
- The call was dropped.
- TAPIERR_INVALDESTADDRESS
- The pointer to the destination address is not valid, is NULL, or the destination address string is too long.
- TAPIERR_INVALDEVICECLASS
- The device class requested is not valid.
- TAPIERR_INVALDEVICEID
- The device class identifier requested is not valid.
- TAPIERR_INVALPOINTER
- The pointer does not reference a valid memory location. One or more of the pointers lpszDestAddress, lpszAppName, lpszCalledParty, or lpszComment have been specified but are invalid.
- TAPIERR_INVALWINDOWHANDLE
- The window handle is not valid.
- TAPIERR_NOREQUESTRECIPIENT
- No recipient application is available to handle the request. The user should start the recipient application and try again.
- TAPIERR_NOTADMIN
- The operation requested require admin priviledges.
- TAPIERR_REQUESTCANCELLED
- The assisted telephony request was cancelled.
- TAPIERR_REQUESTFAILED
- The request failed for unspecified reasons.
- TAPIERR_REQUESTQUEUEFULL
- A recipient application is active, but the request queue is full or there is insufficient memory to expand the queue. The application can try again later.
- TAPIERR_UNKNOWNREQUESTID
- The request identifier referenced is not valid.
- TAPIERR_UNKNOWNWINHANDLE
- An unknown window handle was referenced.
Any other TAPIERR_ values are nonfunctional in Win32-based applications and must not be used.
Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
Windows 95/98: Requires Windows 95 or later.
Version: Requires TAPI 2.0 or later.
Header: Declared in Tapi.h.