Important:
This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.
A version of this page is also available for
4/8/2010

Use the lineSetEquipmentStatefunction to set the state of the radio transmitter and receiver.

Syntax

LONG WINAPI lineSetEquipmentState(
  HLINE 
hLine,
  DWORD 
dwState
);

Parameters

hLine

The line device handle. The line device handle must have been previously obtained by a call to lineOpenwith the proper TAPI device ID specified and a device-specific extension version successfully negotiated with lineNegotiateExtVersion.

dwState

Indicates the line state. See the Equipment Statesconstants for possible values.

Return Value

Returns a positive request identifier if the function is completed asynchronously, or a negative error number if an error occurs. The dwParam2parameter of the corresponding LINE_REPLY message is zero if the function succeeds or it is a negative error number if an error occurs. The following are possible return values:

  • LINEERR_INVALLINEHANDLE

  • LINEERR_NOMEM

  • LINEERR_OPERATIONUNAVAIL

  • LINEERR_OPERATIONFAILED

  • LINEERR_RESOURCEUNAVAIL

  • LINEERR_INVALPOINTER

  • LINEERR_INVALPARAM

  • LINEERR_UNINITIALIZED

Remarks

This is a privileged function.

Requirements

Header extapi.h
Library cellcore.lib
Windows Embedded CE Windows CE 3.0 and later
Windows Mobile Pocket PC 2002 and later, Smartphone 2002 and later

See Also