(Filename: Actor Framework.lvlib:Message Dequeuer.lvclass:Dequeue.vi)

Reads a message that a top-level actor sent to its caller. Use this VI to interact with non-actor code, not in a VI that belongs to an actor.


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Inputs/Outputs

  • cActor_Framework_lvlib_Message_Dequeuerlvclass.png Message Dequeuer in —

    Message Dequeuer in specifies the reference needed to read messages from a top-level actor.

  • ci32.png timeout in ms (-1) —

    timeout in ms specifies the time, in milliseconds, this VI has to read the message. The default is -1, which specifies no timeout.

  • cerrcodeclst.png error in (no error) —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • iActor_Framework_lvlib_Message_Dequeuerlvclass.png Message Dequeuer out —

    Message Dequeuer out returns a duplicate of Message Dequeuer in.

  • iActor_Framework_lvlib_Messagelvclass.png Message —

    Message returns the message that was read from the queue. If timed out? returned TRUE, Message returns the default Message class.

  • ibool.png timed out? —

    timed out? returns TRUE if this VI was unable to read the message within the specified timeout in ms period. In this situation, message returns the default Message class.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.

  • ienum.png priority —

    priority returns the priority level at which LabVIEW sent the message.

    0Low—Specifies that the message was processed after messages of all other priorities. Multiple low-priority messages are processed in the order they are sent.
    1Normal—Specifies that the message was processed after critical- and high-priority messages but before low-priority ones. Multiple normal-priority messages are processed in the order they are sent.
    2High—Specifies that the message was processed first. Multiple high-priority messages are processed in the order they are sent. High-priority messages can be superseded only by an Emergency Stop or Last Ack message, both of which have critical priority.