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lineShutdown function (tapi.h)

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The lineShutdown function shuts down the application's usage of the line abstraction of the API.

Syntax

LONG lineShutdown(
  HLINEAPP hLineApp
);

Parameters

hLineApp

Application's usage handle for the line API.

Return value

Returns zero if the request succeeds or a negative error number if an error occurs. Possible return values are:

LINEERR_INVALAPPHANDLE, LINEERR_RESOURCEUNAVAIL, LINEERR_NOMEM, LINEERR_UNINITIALIZED.

Remarks

If this function is called when the application has lines open or calls active, the call handles are deleted and TAPI automatically performs the equivalent of a lineClose on each open line. However, it is recommended that applications explicitly close all open lines before invoking lineShutdown. If shutdown is performed while asynchronous requests are outstanding, those requests are canceled.

Requirements

Requirement Value
Target Platform Windows
Header tapi.h
Library Tapi32.lib
DLL Tapi32.dll

See also

Basic Telephony Services Reference

TAPI 2.2 Reference Overview

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