com.cloudpos.jniinterface

Class ExternalPrinterInterface

java.lang.Object

com.cloudpos.jniinterface.ExternalPrinterInterface

public class ExternalPrinterInterface
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ExternalPrinterInterface()

Method Summary

Modifier and Type	Method and Description
static int	begin(int handle) prepare to print
static int	close(int handle) close the device
static int	end(int handle) end to print
static int	open(java.lang.String entity) open the device
static int	queryStatus(int handle) query the status of printer
static int	queryVoltage(int handle, int[] pCapacity, int[] pVoltage) query the capacity and voltage
static int	read(int handle, byte[] arryData, int nDataLength, int nTimeout) read the data from the device
static int	write(int handle, byte[] arryData, int nDataLength) write the data to the device

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExternalPrinterInterface

public ExternalPrinterInterface()

Method Detail

open

public static int open(java.lang.String entity)

open the device

Parameters:

entity -

Returns:

value < 0 : error code, value >= 0: success, return value is a handle.This handle will be employed bye other API as an input parameter

close

public static int close(int handle)

close the device

Parameters:

handle - : returned from method of open.

Returns:

value >= 0, success in starting the process; value < 0, error code

begin

public static int begin(int handle)

prepare to print

Parameters:

handle - : returned from method of open.

Returns:

value >= 0, success in starting the process; value < 0, error code

end

public static int end(int handle)

end to print

Parameters:

handle - : returned from method of open.

Returns:

value >= 0, success in starting the process; value < 0, error code

write

public static int write(int handle,
                        byte[] arryData,
                        int nDataLength)

write the data to the device

Parameters:

handle - : returned from method of open.

arryData - : data or control command

nDataLength - : length of data or control command

Returns:

value >= 0, success in starting the process; value < 0, error code

read

public static int read(int handle,
                       byte[] arryData,
                       int nDataLength,
                       int nTimeout)

read the data from the device

Parameters:

handle - : returned from method of open.

arryData - : byte to save result

nDataLength - : expect length of data

nTimeout - : time out

Returns:

value : 0 : success < 0 : error code

queryStatus

public static int queryStatus(int handle)

query the status of printer

Parameters:

handle - : returned from method of open. return value : < 0 : error code = 0 : no paper = 1 : has paper other value : RFU

queryVoltage

public static int queryVoltage(int handle,
                               int[] pCapacity,
                               int[] pVoltage)

query the capacity and voltage

Parameters:

handle - : returned from method of open. return value : < 0 : error code >= 0 : success