lineGetCurrentHSCSDStatus (Windows Embedded CE 6.0)

1/6/2010

Use the lineGetCurrentHSCSDStatus function 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 lineOpen with 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

See Also

Reference

Extended TAPI Functions