3.1.5.2 Processing DISPLAYCONTROL_MONITOR_LAYOUT_PDU
The structure and fields of the DISPLAYCONTROL_MONITOR_LAYOUT_PDU message are specified in section 2.2.2.2. The server SHOULD trigger a display configuration update in the remote session using the parameters specified by the client if all of the following conditions are true:
All of the fields specified in the DISPLAYCONTROL_MONITOR_LAYOUT_PDU message are valid, consistent and within range.
None of the specified monitors overlap.
Each monitor is adjacent to at least one other monitor (even if only at a single point).