xv

public static byte LOBYTE(ushort a) => 
    (byte)(a & 0xFF);

public static byte HIBYTE(ushort a) => 
    (byte)((a >> 8) & 0xFF);

public static ushort HIWORD(uint a) => 
    (ushort)((a >> 16) & 0xFFFF);

public static ushort LOWORD(uint a) => 

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#define MIN(A, B) ((A) < (B) ? (A) : (B))
#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define CLAMP(N, LO, HI) (MIN(MAX((LO), (N)), (HI)))

xv

using System.ComponentModel;
using System.Windows.Interop;
using System.Windows.Input;
using System.Runtime.InteropServices;
using System.IO;

using Windows.Win32.Foundation;
using Windows.Win32.UI.WindowsAndMessaging;
using Windows.Win32;

xv

private static T CycleEnum<T>(T type, int direction) where T : Enum
{
    var values = (T[])Enum.GetValues(typeof(T));

    var index = Array.IndexOf(values, type);
    var newIndex = Math.Clamp(index + direction, 0, values.Length - 1);

    return values[newIndex];
}