DBR701::GetGasPrices
10/16/2008
This method requests up-to-date data about gas prices at local gas stations from the MSN Direct receiver.
Syntax
int GetGasPrices();
Parameters
None.
Return Value
Returns the transaction ID of the request that is sent to the MSN Direct receiver; returns -1 if the request fails.
Remarks
The GetGasPrices method uses RequestSync to perform the transaction, with GAS_PRICES specified in the applicationType parameter.
The gas-price messages are returned asynchronously in the messageFromReceiver parameter of the ProcessInMessageFromReceiver call. The GasPricesMsg object in the sample application illustrates how to parse this type of message.
Warning
The functions in the sample message classes handle data that arrives in a specific format in the payload of an incoming message. If you modify the way in which data is extracted from incoming messages, the message classes will not work as expected.
Requirements
Header | DBR701.h |
Library | DBRLib.lib |
Windows Embedded CE | Windows CE 5.0, Windows Embedded NavReady 2009 |
See Also
Tasks
Adding Custom Classes for Incoming Messages