Use the lineGetCurrentHSCSDStatus function to get the current non-transparent High Speed Circuit Switched Data (HSCSD) configuration.
LONG WINAPI lineGetCurrentHSCSDStatus( HLINE hLine, LPDWORD lpdwChannelsIn, LPDWORD lpdwChannelsOut, LPDWORD lpdwChannelCoding, LPDWORD lpdwAirInterfaceRate );
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. For more information about lineNegotiateExtVersion and lineOpen, see the TAPI Functions API Reference topics on MSDN.
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.
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.
Points to a DWORD indicating the per-channel speed at which the mobile is communicating with the network.
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.
Returns zero if the function completes successfully, or a negative error number if an error occurs. The following are possible return values:
This function is synchronous. No LINE_REPLY message is sent.
Not implemented for CDMA.
Pocket PC: Pocket PC 2002 and later.
Smartphone: Smartphone 2002 and later.
OS Versions: Windows CE 3.0 and later.
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