Finally, double-buffered, non-flickering WinForms TreeView in Windows 10

BufferedTreeView.cs

using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Drawing;

namespace DddProperyEditorGUI.Util
{
    /* 
     * Mostly based off of https://sites.google.com/a/nomad-net.info/dev/articles/double-buffered-tree-and-list-views
     * Updated to work with Windows 10 by RomanPort
     */
    class BufferedTreeView : TreeView
    {
        private const int TV_FIRST = 0x1100;
        private const int TVM_SETBKCOLOR = TV_FIRST + 29;
        private const int TVM_SETEXTENDEDSTYLE = TV_FIRST + 44;
        private const int TVS_EX_DOUBLEBUFFER = 0x0004;

        private const int WM_PRINTCLIENT = 0x0318;
        private const int PRF_CLIENT = 0x00000004;

        public BufferedTreeView()
        {

        }

        protected override void OnHandleCreated(EventArgs e)
        {
            base.OnHandleCreated(e);

            //Send message to set the styles
            SendMessage(Handle, TVM_SETEXTENDEDSTYLE, (IntPtr)TVS_EX_DOUBLEBUFFER, (IntPtr)TVS_EX_DOUBLEBUFFER);

            //Enable our override for OnPaint - https://stackoverflow.com/questions/2215393/onpaint-override-is-never-called
            SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw, true);
            
            //Not sure why this is needed, but without it you get weird black boxes
            SendMessage(Handle, TVM_SETBKCOLOR, IntPtr.Zero, (IntPtr)ColorTranslator.ToWin32(BackColor));
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            if (GetStyle(ControlStyles.UserPaint))
            {
                Message m = new Message();
                m.HWnd = Handle;
                m.Msg = WM_PRINTCLIENT;
                m.WParam = e.Graphics.GetHdc();
                m.LParam = (IntPtr)PRF_CLIENT;
                DefWndProc(ref m);
                e.Graphics.ReleaseHdc(m.WParam);
            }
            base.OnPaint(e);
        }

        [DllImport("user32.dll")]
        private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
    }
}