UnityEditor.DockArea.CheckDragWindowExists C# (CSharp) Method

        private static void CheckDragWindowExists()
        {
            if ((s_DragMode == 1) && (PaneDragTab.get.m_Window == null))
            {
                s_OriginalDragSource.RemoveTab(s_DragPane);
                UnityEngine.Object.DestroyImmediate(s_DragPane);
                PaneDragTab.get.Close();
                GUIUtility.hotControl = 0;
                ResetDragVars();
            }
        }