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.

Remarks

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

See also

phoneInitialize

phoneInitializeEx

phoneOpen

phoneShutdown