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4/8/2010

Use the lineGetCurrentHSCSDStatusfunction to get the current non-transparent High Speed Circuit Switched Data (HSCSD) configuration.

Syntax 

LONG WINAPI lineGetCurrentHSCSDStatus(
  HLINE 
hLine,
  LPDWORD 
lpdwChannelsIn,
  LPDWORD 
lpdwChannelsOut,
  LPDWORD 
lpdwChannelCoding,
  LPDWORD 
lpdwAirInterfaceRate 
);

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.

lpdwChannelsIn

Points to a DWORD indicating the current number of downstream radio channels. If the phone is not currently in a data call, this value is 0.

lpdwChannelsOut

Points to a DWORD indicating the current number of upstream radio channels. If the phone is not currently in a data call, this value is 0.

lpdwChannelCoding

Points to a DWORD indicating the per-channel speed at which the mobile is communicating with the network.

lpdwAirInterfaceRate

Points to a DWORD indicating the speed at which the mobile is communicating with the base station. In the case of an asynchronous connection, this value shall be the incoming data rate.

Return Value

Returns zero if the function completes successfully, or a negative error number if an error occurs. The following are possible return values:

  • LINEERR_RESOURCEUNAVAIL

  • LINEERR_INVALLINEHANDLE

  • LINEERR_STRUCTURETOOSMALL

  • LINEERR_INVALPOINTER

  • LINEERR_UNINITIALIZED

  • LINEERR_NOMEM

  • LINEERR_OPERATIONUNAVAIL

  • LINEERR_OPERATIONFAILED

Remarks

This function is synchronous. No LINE_REPLY message is sent.

Not implemented for CDMA.

Requirements

Header extapi.h
Library cellcore.lib
Windows Embedded CE Windows Embedded CE 6.0 and later
Windows Mobile Pocket PC 2002 and later, Smartphone 2002 and later

See Also