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