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AuMakeNoopAction(3)   DragonFly Library Functions Manual   AuMakeNoopAction(3)

Name
       AuMakeNoopAction - initialize an action

Synopsis
       #include <audio/audiolib.h>

       AuMakeNoopAction(action, trigger_state, trigger_prev_state,
       trigger_reason)
           AuElementAction action; /* RETURN */
           unsigned char trigger_state;
           unsigned char trigger_prev_state;
           unsigned char trigger_reason;

Arguments
       action    Returns the initialized action.

       trigger_state
                 Specifies the state that triggers the action.  This must be
                 one of thses constants: AuStateStop, AuStateStart,
                 AuStatePause, or AuStateAny.

       trigger_prev_state
                 Specifies the previous state for the trigger.  This must be
                 one of thses constants: AuStateStop, AuStateStart,
                 AuStatePause, or AuStateAny.

       trigger_reason
                 Specifies the reason for the action.  This must be one of
                 these constants: AuReasonUser, AuReasonUnderrun,
                 AuReasonOverrun, AuReasonEOF, AuReasonWatermark,
                 AuReasonHardware, or AuReasonAny.

Description
       AuMakeNoopAction sets the action field of action to AuElementActionNoop
       and initializes the other fields with the remaining arguments.

       AuMakeNoopAction is implemented as a macro.

See Also
       AuMakeChangeStateAction, AuMakeSendNotifyAction.

       audiolib - Network Audio System C Language Interface

audiolib - action initialization     1.9.4                 AuMakeNoopAction(3)