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using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
namespace WinKeyRecover
{
internal class CheckKey
{
private readonly IntPtr hModule;
private readonly string fileXml;
private readonly string mspid = "00000";
private readonly byte[] array = new byte[50];
private readonly byte[] array2 = new byte[164];
private readonly byte[] array3 = new byte[1272];
private readonly IntPtr intPtr = Marshal.AllocHGlobal(50);
private readonly IntPtr intPtr2 = Marshal.AllocHGlobal(164);
private readonly IntPtr intPtr3 = Marshal.AllocHGlobal(1272);
private readonly GetProductDescription getProductDescription = new GetProductDescription();
private readonly GetString getString = new GetString();
private string result;
public CheckKey(IntPtr hModule, string fileXml)
{
this.hModule = hModule;
this.fileXml = fileXml;
array[0] = 50;
array2[0] = 164;
array3[0] = 248;
array3[1] = 4;
Marshal.Copy(array, 0, intPtr, 50);
Marshal.Copy(array2, 0, intPtr2, 164);
Marshal.Copy(array3, 0, intPtr3, 1272);
}
public string Check(string key)
{
int num = ((NativeMethods.PidGenX)Marshal.GetDelegateForFunctionPointer(NativeMethods.GetProcAddress(hModule, "PidGenX"), typeof(NativeMethods.PidGenX)))(key, fileXml, mspid, 0, intPtr, intPtr2, intPtr3);
if (num == 0)
{
Marshal.Copy(intPtr3, array3, 0, array3.Length);
string @string = getString.Get(array3, 136);
result = getProductDescription.Get("{" + @string + "}", fileXml);
}
else
{
result = "Invalid";
}
return result;
}
public void FreeMemory()
{
Marshal.FreeHGlobal(intPtr);
Marshal.FreeHGlobal(intPtr2);
Marshal.FreeHGlobal(intPtr3);
}
}
}
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