GitUI.CommandsDialogs.FormBrowse.GitTree_MouseDown C# (CSharp) Méthode

        private void GitTree_MouseDown(object sender, MouseEventArgs e)
        {
            //DRAG
            if (e.Button == MouseButtons.Left)
            {
                // Remember the point where the mouse down occurred.
                // The DragSize indicates the size that the mouse can move
                // before a drag event should be started.
                Size dragSize = SystemInformation.DragSize;

                // Create a rectangle using the DragSize, with the mouse position being
                // at the center of the rectangle.
                gitTreeDragBoxFromMouseDown = new Rectangle(new Point(e.X - (dragSize.Width / 2),
                                                                e.Y - (dragSize.Height / 2)),
                                                                dragSize);
            }
        }