The AuiManagerDock enumeration provides the following values:
wx.aui.AUI_DOCK_NONE
wx.aui.AUI_DOCK_TOP
wx.aui.AUI_DOCK_RIGHT
wx.aui.AUI_DOCK_BOTTOM
wx.aui.AUI_DOCK_LEFT
wx.aui.AUI_DOCK_CENTER
wx.aui.AUI_DOCK_CENTRE