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PassThruOpen Establish communication with the adapter

Description

The function establishes a connection with the adapter. Not with a car. One Dll can work simultaneously with several adapters. Adapters must have different IP addresses.

long PassThruOpen(void* pName, unsigned long* pDeviceID)

Options

void* pName - The name of the adapter. The IP address of the adapter is used as the name. The string must end with a null character. If the pointer is NULL, then the IP address from the config.ini configuration file is set. The default is 192.168.1.3
unsigned long* pDeviceID - The 4-byte identifier of the adapter connection returned by the function.

Returned error codes

Definition	Description
STATUS_NOERROR	Function completed successfully
ERR_DEVICE_NOT_CONNECTED	No connection to adapter. Possible reasons: The adapter is turned off, there is no network, or the IP address is not set correctly.
ERR_DEVICE_IN_USE	The device is already in use by the program. Possible reasons: The PassThruClose function was not executed in the previous session.
ERR_NULL_PARAMETER	PDeviceID not set
ERR_FAILED	Defined by the J2534 standard. In the adapter, it is not used for this function.

Example

#include "j2534_lib.hpp"

unsigned long DeviceID;
long Ret;

Ret = PassThruOpen("192.168.1.3", &DeviceID);
if (Ret != STATUS_NOERROR)
{	// Error handling
}

// Further, DeviceID is used in the following functions.
PassThruConnect(DeviceID, ISO14230, Flags, 10400, &ChannelID);
PassThruDisconnect(ChannelID);
PassThruClose(DeviceID);