private void Tabs_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if ((TabDragPoint != Point.Empty) && ((Math.Abs(e.X - TabDragPoint.X) > SystemInformation.DragSize.Width) || (Math.Abs(e.Y - TabDragPoint.Y) > SystemInformation.DragSize.Height)))
{
Tabs.DoDragDrop(sender, DragDropEffects.Move);
}
}
}
