UnityEditor.DockArea.PerformDrop C# (CSharp) Method

        public bool PerformDrop(EditorWindow w, DropInfo info, Vector2 screenPos)
        {
            s_OriginalDragSource.RemoveTab(w, s_OriginalDragSource != this);
            int idx = (s_PlaceholderPos <= this.m_Panes.Count) ? s_PlaceholderPos : this.m_Panes.Count;
            this.AddTab(idx, w);
            this.selected = idx;
            return true;
        }