BrightSign Object Reference Manual (FW 5.1) - Manual (Page 280)

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roControlUp, roControlDown
These objects are posted by the control port to the configured message port when inputs change state. The roControlUp
and roControlDown objects are not normally created directly.
An roControlDown event is posted when the input level goes from high to low. An roControlUp event is posted when the
input level goes from low to high.
Interfaces:
ifInt , ifSourceIdentity
The ifInt interface provides the following:
• GetInt() As Integer: Retrieves the pin number associated with the event.
The ifSourceIdentity interface provides the following:
• GetSourceIdentity() As Integer: Retrieves the identity value that can be used to associate events with the
source roControlPort instance.