3.2.5.2.5.2 Sending System Menu PDU

The System Menu PDU is sent by the client when a RAIL window receives a command to display its system menu by a means other than clicking it, such as by right-clicking the taskbar icon for the window.

Note Mouse clicks in the RAIL window are forwarded to the server via the RDP core protocol. The PDU is initialized as specified in section 2.2.2.6.2.

The WindowId field SHOULD be initialized to the ID of an existing window on the server that is associated with the local RAIL window. The RAIL client SHOULD create this association during processing of the Window Information Order for new windows, as specified in section 2.2.1.3.1.2.1.