Drag and drop with custom cursor

CustomDragCursor.cs

void Main()
{
    var pb = new PictureBox { Image = Image.FromFile(@"D:\tmp\dotnet.png") };
    bool down = false;
    Cursor dragCursor = null;
    pb.MouseDown += (sender, e) => down = true;
    pb.MouseUp += (sender, e) => { down = false; dragCursor = null; };
    pb.MouseMove += (sender, e) =>
    {
        if (down)
        {
            dragCursor = CreateCursor((Bitmap)pb.Image, pb.Image.Width / 2, pb.Image.Height / 2);
            pb.DoDragDrop(pb.Image, DragDropEffects.Copy);
        }
    };
    pb.GiveFeedback += (sender, e) =>
    {
        if (dragCursor != null)
        {
            Cursor.Current = dragCursor;
            e.UseDefaultCursors = false;
        }
    };
    pb.Dump();
}

    public struct IconInfo
    {
        public bool fIcon;
        public int xHotspot;
        public int yHotspot;
        public IntPtr hbmMask;
        public IntPtr hbmColor;
    }


    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool GetIconInfo(IntPtr hIcon, ref IconInfo pIconInfo);

    [DllImport("user32.dll")]
    public static extern IntPtr CreateIconIndirect(ref IconInfo icon);

    public static Cursor CreateCursor(Bitmap bmp, int xHotSpot, int yHotSpot)
    {
        IntPtr ptr = bmp.GetHicon();
        IconInfo tmp = new IconInfo();
        GetIconInfo(ptr, ref tmp);
        tmp.xHotspot = xHotSpot;
        tmp.yHotspot = yHotSpot;
        tmp.fIcon = false;
        ptr = CreateIconIndirect(ref tmp);
        return new Cursor(ptr);
    }

Assembly references:

• System.Windows.Forms

Namespaces to import:

• System.Windows.Forms
• System.Drawing
• System.Runtime.InteropServices