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FiscalPrinterUtility.cs
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FiscalPrinterUtility.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Management;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using FP3530;
namespace Distributr.WPF.Lib.ViewModels.Transactional
{
public class FiscalPrinterUtility
{
public bool IsFiscalPrinterConnected()
{
using (var searcher =
new ManagementObjectSearcher(@"Select * From Win32_USBControllerDevice"))
{
using (var collection = searcher.Get())
{
foreach (var device in collection)
{
var usbDevice = Convert.ToString(device);
// if (usbDevice.Contains(pid) && usbDevice.Contains(vid))
//return true;
}
}
}
return false;
}
public FiscalPrinterUtility(int port = 2, int comSpeed = 115200)
{
this.comPort = port;
this.comSpeed = comSpeed;
}
private CS_BGR_FP2000_KLClass FP2000KL;
private int language = 1;
int comPort; //todo:read port from settings
int comSpeed; //todo:read port speed from settings
public bool OpenFiscalPrinter()
{
int allRecs, fiscRecs;
try
{
// Default operator code, operaror password and till number are used
// These values should be set and kept somewhere in your software
if (OpenFiscalReceipt(1, "0000", 1, out allRecs, out fiscRecs))
{
// Do something with all records and fiscal records
// if you wish
return true;
}
else
{
MessageBox.Show("Open fiscal receipt failed");
}
}
catch(Exception ex)
{
}
finally
{
}
return false;
}
public void ConnectFiscalPrinter()
{
try
{
Connect(comPort, comSpeed);
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message);
}
catch (FormatException ex)
{
MessageBox.Show(ex.Message);
}
catch (OverflowException ex)
{
MessageBox.Show(ex.Message);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public bool Sell(string line1, string line2, string taxGr, int price, int price_precision, int quan, int quan_precision)
{
try
{
return AddProduct(line1, line2, taxGr, price, price_precision, quan, quan_precision);
}
catch (Exception ex)
{
return false;
}
}
public bool SellWithDiscount(string line1, string line2, string taxGr, int price, int price_precision, int quan, int quan_precision, double percent)
{
try
{
return SellDiscount(line1, line2, taxGr, price, price_precision, quan, quan_precision, percent);
}
catch (Exception ex)
{
return false;
}
}
public void GetTotal(string line1, string line2)
{
try
{
bool fBonOpened = false, sBonOpened = false;
int salesNum = 0;
int amt = 0, tender = 0;
int payamout = 1000;
if (CheckFiscalTransactionStatus(out fBonOpened, out sBonOpened, out salesNum, out amt, out tender))
{
if (sBonOpened)
{
MessageBox.Show("Non fiscal receipt opened");
throw (new Exception());
}
if (fBonOpened)
{
if ((tender < amt) || ((amt == 0) && (tender == 0)))
{
string strPayCode = "";
int returnedAmount = 0;
if (Total(line1,line2,"P", payamout, 0, out strPayCode, out returnedAmount))
{
// Do something if you wish like show the retured amount
if (strPayCode == "R")
MessageBox.Show("Change: " + ((double)returnedAmount / 100).ToString());
if (strPayCode == "D")
MessageBox.Show("To pay: " + ((double)returnedAmount / 100).ToString());
}
else
{
MessageBox.Show("Total failed");
throw (new Exception());
}
}
else
{
MessageBox.Show("No need for total");
throw (new Exception());
}
}
else
{
MessageBox.Show("Fiscal receipt not opened");
throw (new Exception());
}
}
else
{
MessageBox.Show("Check Fiscal Transaction Status failed");
}
}
catch
{
// Do exception handling
}
finally
{
// UpdateStatusBits();
}
}
public void CloseFiscalPrinter()
{
int allRecs, fiscRecs;
try
{
if (CloseFiscalReceipt(out allRecs, out fiscRecs))
{
// Do something with all records and fiscal records
// if you wish
}
else
{
MessageBox.Show("Close fiscal receipt failed");
}
}
catch
{
// Do exception handling
}
finally
{
// UpdateStatusBits();
}
}
#region Helpers
private void Connect(int port, int speed)
{
FP2000KL.INIT_Ex1(port, speed);
}
private bool OpenFiscalReceipt(int opCode, string opPWD, int tillNumber, out int allReceipts, out int fiscReceipts)
{
allReceipts = 0;
fiscReceipts = 0;
try
{
int ret = 0;
string strAllRec = "", strFiscRec = "";
// FP-2000 KL
ret = FP2000KL.CMD_48_0_0(opCode.ToString(), opPWD, tillNumber.ToString(), ref strAllRec, ref strFiscRec);
if (ret != 0)
{
MessageBox.Show(CalcError(ret));
// Error handling
return false;
}
else
{
allReceipts = Convert.ToInt32(strAllRec);
fiscReceipts = Convert.ToInt32(strFiscRec);
}
}
catch
{
return false;
}
return true;
}
private bool CloseFiscalReceipt(out int allReceipts, out int fiscReceipts)
{
allReceipts = 0;
fiscReceipts = 0;
try
{
int ret = 0;
string strAllRec = "", strFiscRec = "";
ret = FP2000KL.CMD_56_0_0(ref strAllRec, ref strFiscRec);
if (ret != 0)
{
MessageBox.Show(CalcError(ret));
// Error handling
return false;
}
else
{
allReceipts = Convert.ToInt32(strAllRec);
fiscReceipts = Convert.ToInt32(strFiscRec);
}
}
catch
{
return false;
}
return true;
}
private string CalcError(int error)
{
return "Last error code: " + error.ToString() + "\n" +
"Last error message: " + FP2000KL.GET_LASTERROR(language);
}
private bool AddProduct(string line1, string line2, string taxGr, int price, int price_precision, int quan, int quan_precision)
{
try
{
int ret = 0;
// Custom formating to ensure maximum precision and avoid culture specific decimal separators.
string strPrice = string.Format("{0}.{1}", (int) (price/Math.Pow(10, price_precision)),
((int) (price%Math.Pow(10, price_precision))).ToString(
string.Format("D{0}", price_precision)));
string strQuan = string.Format("{0}.{1}", (int) (quan/Math.Pow(10, quan_precision)),
((int) (quan%Math.Pow(10, quan_precision))).ToString(string.Format(
"D{0}", quan_precision)));
ret = FP2000KL.CMD_49_2_0(line1, line2, taxGr, strPrice, strQuan);
if (ret != 0)
{
MessageBox.Show(CalcError(ret));
// Error handling
return false;
}
}
catch
{
return false;
}
return true;
}
private bool SellDiscount(string line1, string line2, string taxGr, int price, int price_precision, int quan, int quan_precision, double percent)
{
try
{
int ret = 0;
// Custom formating to ensure maximum precision and avoid culture specific decimal separators.
string strPrice = string.Format("{0}.{1}", (int)(price / Math.Pow(10, price_precision)), ((int)(price % Math.Pow(10, price_precision))).ToString(string.Format("D{0}", price_precision)));
string strQuan = string.Format("{0}.{1}", (int)(quan / Math.Pow(10, quan_precision)), ((int)(quan % Math.Pow(10, quan_precision))).ToString(string.Format("D{0}", quan_precision)));
string strPerc = string.Format("{0}.{1:D2}", (int)percent, ((int)(Math.Abs(percent) * 100)) % 100);
ret = FP2000KL.CMD_49_0_0(line1, line2, taxGr, strPrice, strQuan, strPerc);
if (ret != 0)
{
MessageBox.Show(CalcError(ret));
// Error handling
return false;
}
}
catch
{
return false;
}
return true;
}
private bool Total(string line1, string line2, string payMode, int paysum, int paysum_precision, out string payCode, out int amount)
{
payCode = "";
amount = 0;
try
{
int ret = 0;
string strRetAmt = "", strAmt = "";
strAmt = string.Format("{0}.{1}", (int)(paysum / Math.Pow(10, paysum_precision)),
((int)(paysum % Math.Pow(10, paysum_precision))).ToString(string.Format("D{0}",
paysum_precision)));
ret = FP2000KL.CMD_53_0_0(line1, line2, payMode, strAmt, ref payCode, ref strRetAmt);
if (ret != 0)
{
MessageBox.Show(CalcError(ret));
// Error handling
return false;
}
else
{
amount = Convert.ToInt32(strRetAmt);
}
}
catch
{
return false;
}
return true;
}
private bool CheckFiscalTransactionStatus(out bool fReceiptOpened, out bool sReceiptOpened, out int salesNumber, out int amount, out int tender)
{
fReceiptOpened = false;
sReceiptOpened = false;
salesNumber = 0;
amount = 0;
tender = 0;
try
{
int ret = 0;
string strRecOpend = "", strSalesNum = "", strAmount = "", strTender = "";
ret = FP2000KL.CMD_76_0_0(ref strRecOpend, ref strSalesNum, ref strAmount, ref strTender);
if (ret != 0)
{
MessageBox.Show(CalcError(ret));
// Error handling
return false;
}
else
{
if (0 == strRecOpend.CompareTo("1"))
{
fReceiptOpened = FP2000KL.GET_BIT_STATE(2, 3);
sReceiptOpened = FP2000KL.GET_BIT_STATE(2, 5);
}
salesNumber = Convert.ToInt32(strSalesNum);
amount = Convert.ToInt32(strAmount);
tender = Convert.ToInt32(strTender);
}
}
catch
{
return false;
}
return true;
}
#endregion
public void Dispose()
{
if (this.FP2000KL != null)
this.FP2000KL = null;
}
}
}