How can I move a Borderless form?

This code snippet shows how you can move a borderless form.

[C#]
public const int WM_NCLBUTTONDOWN = 0xA1;
public const int HTCAPTION = 0x2;
[DllImport('User32.dll')]
public static extern bool ReleaseCapture();
[DllImport('User32.dll')]
public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);

private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
	if (e.Button == MouseButtons.Left)
	{
		ReleaseCapture();
		SendMessage(Handle, WM_NCLBUTTONDOWN, HTCAPTION, 0);
	}
}