Platform SDK: TAPI

PHONEERR_ Constants

This is the list of error codes that the implementation can return when invoking operations on phone devices. Consult the individual function descriptions to determine which of these error codes each function can return.

PHONEERR_ALLOCATED
The specified resource is already allocated.
PHONEERR_BADDEVICEID
The specified device identifier is invalid or out of range.
PHONEERR_DISCONNECTED
The call was disconnected.
PHONEERR_INCOMPATIBLEAPIVERSION
The application requested an API version or version range that cannot be supported by the Telephony API implementation or the corresponding service provider.
PHONEERR_INCOMPATIBLEEXTVERSION
The application requested an extension version or version range that cannot be supported by the service provider.
PHONEERR_INIFILECORRUPT
Because of internal inconsistencies or formatting problems in the telephon.INI file, it cannot be read and understood properly by TAPI.
PHONEERR_INUSE
The device is currently in use. The device cannot be configured.
PHONEERR_INVALAPPHANDLE
The application's specified usage handle or registration handle is invalid.
PHONEERR_INVALAPPNAME
The specified application name is invalid. If an application name is specified by the application, it is assumed that the string does not contain any nondisplayable characters and is NULL-terminated.
PHONEERR_INVALBUTTONLAMPID
The specified button/lamp identifier is out of range or invalid.
PHONEERR_INVALBUTTONMODE
The button mode parameter is invalid.
PHONEERR_INVALBUTTONSTATE
The button states parameter is invalid.
PHONEERR_INVALDATAID
The specified data identifier is invalid.
PHONEERR_INVALDEVICECLASS
The specified phone does not support the indicated device class.
PHONEERR_INVALEXTVERSION
The service provider extension version number is invalid.
PHONEERR_INVALHOOKSWITCHDEV
The hookswitch device parameter is invalid.
PHONEERR_INVALHOOKSWITCHMODE
The hookswitch mode parameter is invalid.
PHONEERR_INVALLAMPMODE
The specified lamp mode parameter is invalid.
PHONEERR_INVALPARAM
A parameter, such as a row or column value or a window handle, is invalid or out of range.
PHONEERR_INVALPHONEHANDLE
The specified device handle is invalid.
PHONEERR_INVALPHONESTATE
The phone device is not in a valid state for the requested operation.
PHONEERR_INVALPOINTER
One or more of the specified pointer parameters are invalid.
PHONEERR_INVALPRIVILEGE
The dwPrivilege parameter is invalid.
PHONEERR_INVALRINGMODE
The ring mode parameter is invalid.
PHONEERR_NODEVICE
The specified device identifier, which was previously valid, is no longer accepted because the associated device has been removed from the system since TAPI was last initialized or is corrupt in a way that was not detected at initialization.
PHONEERR_NODRIVER
The telephone service provider for the specified device found that one of its components is missing or corrupt in a way that was not detected at initialization time. The user should be advised to use the Telephony Control Panel to correct the problem.
PHONEERR_NOMEM
Insufficient memory to complete the requested operation, or unable to allocate or lock memory.
PHONEERR_NOTOWNER
The application does not have owner privilege to the specified phone device.
PHONEERR_OPERATIONFAILED
The operation failed for an unspecified reason.
PHONEERR_OPERATIONUNAVAIL
The operation is not available.
PHONEERR_REINIT
If TAPI reinitialization has been requested, for example as a result of adding or removing a telephony service provider, then phoneInitialize, phoneInitializeEx or phoneOpen requests are rejected with this error until the last application shuts down its usage of the API (using phoneShutdown), at which time the new configuration becomes effective and applications are once again permitted to call phoneInitialize or phoneInitializeEx.
PHONEERR_REQUESTOVERRUN
The maximum number of outstanding phone requests has been exceeded.
PHONEERR_RESOURCEUNAVAIL
The operation cannot be completed because of resource overcommitment.
PHONEERR_STRUCTURETOOSMALL
The specified phone caps structure is too small.
PHONEERR_UNINITIALIZED
The operation was invoked before any application called phoneInitialize, phoneInitializeEx.

The values 0xC0000000 through 0xFFFFFFFF are available for device-specific extensions; the values 0x80000000 through 0xBFFFFFFF are reserved; and 0x00000000 through 0x7FFFFFFF are used as request identifiers.

If an application gets an error return that it does not specifically handle (such as an error defined by a device-specific extension), it should treat the error as a PHONEERR_OPERATIONFAILED (for an unspecified reason).

Requirements

  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.

See Also

phoneInitialize, phoneInitializeEx, phoneOpen, phoneShutdown