Interop.cs

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using System;
using System.Runtime.InteropServices;
 
internal static class Interop
{
    internal static class Kernel32
    {
        internal struct SYSTEM_INFO
        {
            internal ushort wProcessorArchitecture;
 
            internal ushort wReserved;
 
            internal int dwPageSize;
 
            internal IntPtr lpMinimumApplicationAddress;
 
            internal IntPtr lpMaximumApplicationAddress;
 
            internal IntPtr dwActiveProcessorMask;
 
            internal int dwNumberOfProcessors;
 
            internal int dwProcessorType;
 
            internal int dwAllocationGranularity;
 
            internal short wProcessorLevel;
 
            internal short wProcessorRevision;
        }
 
        internal enum ProcessorArchitecture : ushort
        {
            Processor_Architecture_INTEL = 0,
            Processor_Architecture_ARM = 5,
            Processor_Architecture_IA64 = 6,
            Processor_Architecture_AMD64 = 9,
            Processor_Architecture_ARM64 = 12,
            Processor_Architecture_UNKNOWN = ushort.MaxValue
        }
 
        [DllImport("kernel32.dll")]
        internal static extern void GetNativeSystemInfo(out SYSTEM_INFO lpSystemInfo);
 
        [DllImport("kernel32.dll")]
        internal static extern void GetSystemInfo(out SYSTEM_INFO lpSystemInfo);
    }
}