Events designed to modify the Form's cursor at movements during runtime.

Events.cs

using System;
using System.Windows.Forms;

namespace BunifuDragForm
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void panel1_MouseDown(object sender, MouseEventArgs e)
        {
            this.Cursor = Cursors.SizeAll;
        }

        private void panel1_MouseUp(object sender, MouseEventArgs e)
        {
            this.Cursor = Cursors.Default;
        }
    }
}