.NET (Core and Framework)

<br />
		private void pnMove_MouseUp(object sender, MouseEventArgs e)<br />
		{<br />
			this.bMDown = false;<br />
		}<br />
<br />
		private void pnMove_MouseMove(object sender, MouseEventArgs e)<br />
		{<br />
			if (this.bMDown)<br />
			{<br />
				if ((e.X != this.StartX) || (e.Y != this.StartY))<br />
				{<br />
					this.Left += e.X-this.StartX;<br />
					this.Top += e.Y-this.StartY;<br />
					this.Refresh();<br />
					this.Parent.Refresh();<br />
				}<br />
			}<br />
		}<br />
<br />
		private void pnMove_MouseDown(object sender, MouseEventArgs e)<br />
		{<br />
			this.StartX = e.X;<br />
			this.StartY 	= e.Y;<br />
			this.bMDown = true;<br />
		}<br />
<br />
<br />

Process.Start(S"shutdown.exe", S"-l");