3.2.1.1 Windowing Support Level

The windowing support level determines whether the server is capable of supporting Windowing Alternate Secondary Drawing Orders and the following flags: WINDOW_ORDER_FIELD_CLIENTAREASIZE, WINDOW_ORDER_FIELD_RPCONTENT, and WINDOW_ORDER_FIELD_ROOTPARENT. This is communicated to the client by the WndSupportLevel field, as part of the Window List Capability Set (section 2.2.1.1.2).