BrightSign HD2000 Object Reference Manual - Manual (Page 10)

roMessagePort
A message port is the place messages (events) are sent. See the “Event Loops” section for more details.
When using Roku BrightScript, you would not call these functions directly. Instead, use the “Wait”
BrightScript statement (see the BrightScript documentation).
Interfaces:
 ifMessagePort
rotOBJECT GetMessage (rotVOID)
rotOBJECT WaitMessage(rotINT timeout)
rotVOID PostMessage(rotOBJECT msg)
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