C#

1. Return a file stream from web - api and the deserialize the stream in GetResponse() method in MVC.
2. Upload a file from MVC - Here i have FileStream of the file.

S.
No	Machine Id #	Machine  Name	Model no.	Serial no.	Made in	Location
01	AC01	Air Compressor (CECCATO)	CSB 25/10	CAI 136509	Italy	Old Factory
02	AC02	Air Compressor (CECCATO)	CSB 25/10	CAI 136510	Italy	Old Factory
03	AC03	Piston Air Compressor	462 TV	02 H1029PKZ	Italy	Old Factory
04	AC04	Rotary Screw Head Compressor (Ingersoll Rand)	SSR-EP 100	CK 8225U08163	Italy	New Factory
05	BM05	Multi Boring Machine (SCM)	MULTITECH PLUS	Not Available	Italy	New Factory
06	CC01	Chip Collector (FIDA)	SILO	SCF 165/04	Italy	Old Factory
			IMPIANTO	F 1013/04		
07	CC02	Chip Collector(FIDA)	TRC 1001	Not Available	Italy	New Factory
			TRC 711	Not Available		
08	CM02	Rip Saw (SCM)	SI 450 N	AB/167284	Italy	Old Factory
09	CM04	Automatic Panel Sizing Center (MACMAZZA)	TS100	589	Italy	Old Factory
10	CM06	Rip Saw (SAC)	CS 4	Not Available	Italy	Old Factory
11	CM07	Rip Saw (SCM)	SI-350 N	AB/153028	Italy	Old Factory
12	CM08	Band Saw (CENTAURO)	R-800	6080	Italy	Old Factory
13	CM09	Band Saw (CENTAURO)	CENTAURO-C	Not Available	Italy	Old Factory
14	CM10	Multi Rip Saw (SCM) 	M-3	AB/167282	Italy	Old Factory
15	CM11	Multi Rip Saw (SCM) 	M-2	AB.42150	Italy	Old Factory
16	CM12	Chain Cutter (MASTERWOOD)	OMR 350	35109102	Italy	Old Factory
17	CM13	Under Side Cross Cut Saw (STROMAB)	RS-110	91002	Italy	Outside
18	CM14	Double side Cutter (GABBIANI)	Not Available	Not Available	Italy	Old Factory

Hi,

I have a card reader for read a user card but reading appears that:

<b>For user 7196: %00007196_ç00007196_ - this is a new card</b>

<b>For user 910202: ç00910202_ - this is a old card</b>

Another card reader appears:

<b>For user 7196: 00007196 - this is a new card</b>

<b>For user 910202: 00910202 - this is a old card</b>

The problem is when i pass the card the system sends all codes like a copy-paste but i need control this paste. Eliminate chars, etc...

This code receives all ps/2 codes:

<pre lang="c#">
using System;
using System.Diagnostics;
using System.Windows.Forms;
using System.Runtime.InteropServices;

class InterceptKeys
{
    [DllImport(&quot;user32.dll&quot;, CharSet = CharSet.Auto, SetLastError = true)]
    private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId);

    [DllImport(&quot;user32.dll&quot;, CharSet = CharSet.Auto, SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    private static extern bool UnhookWindowsHookEx(IntPtr hhk);

    [DllImport(&quot;user32.dll&quot;, CharSet = CharSet.Auto, SetLastError = true)]
    private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);

    [DllImport(&quot;kernel32.dll&quot;, CharSet = CharSet.Auto, SetLastError = true)]
    private static extern IntPtr GetModuleHandle(string lpModuleName);

    public static int _count = 0;
    private const int WH_KEYBOARD_LL = 13;
    private const int WM_KEYDOWN = 0x0100;
    private static LowLevelKeyboardProc _proc = HookCallback;
    private static IntPtr _hookID = IntPtr.Zero;

    public static void Main()
    {
        _hookID = SetHook(_proc);
        Application.Run();
        UnhookWindowsHookEx(_hookID);
    }

    private static IntPtr SetHook(LowLevelKeyboardProc proc)
    {
        using (Process curProcess = Process.GetCurrentProcess())

        using (ProcessModule curModule = curProcess.MainModule)
        {
            return SetWindowsHookEx(WH_KEYBOARD_LL, proc, GetModuleHandle(curModule.ModuleName), 0);
        }
    }

    private delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);

    private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
    {
        if (nCode &gt;= 0 &amp;&amp; wParam == (IntPtr)WM_KEYDOWN)
        {

            int vkCode = Marshal.ReadInt32(lParam);

            if ((Keys)vkCode == Keys.Return)
            {
                Console.WriteLine(&quot;Cartão novo lido com sucesso.&quot;);
            }

            Console.WriteLine((Keys)vkCode);
        }
        return CallNextHookEx(_hookID, nCode, wParam, lParam);
    }
}
</pre>

<b>I need increase this code, any help?</b>

PrintDialog printDia = new PrintDialog();
printDia.PrinterSettings = new PrinterSettings();
DialogResult result = printDia.ShowDialog();
StringBuilder sb = new StringBuilder();
        sb.AppendLine("<STX><ESC>A");
        sb.AppendLine("<ESC>H0001<ESC>V0001<ESC>XM45676567");
        sb.AppendLine("<ESC>Q1");
        sb.AppendLine("<ESC>Z<ETX>")
String output = sb.ToString().Replace("<ESC>", ((char)27).ToString());
        output.Replace("<STX>",((char)2).ToString());
        output.Replace("<ETX>", ((char)3).ToString());
if (result == DialogResult.OK)
        {
            RawPrinterHelper.SendStringToPrinter(printDia.PrinterSettings.PrinterName, output);
        }