AuMakeChangeStateAction - initialize an action
#include <audio/audiolib.h>
AuMakeChangeStateAction(action, trigger_state, trig_ger_prev_state,
trigger_reason, flow, element_num,
new_state)
AuElementAction action; /* RETURN */
unsigned char trigger_state;
unsigned char trigger_prev_state;
unsigned char trigger_reason;
AuFlowID flow;
unsigned char element_num;
unsigned char new_state;
trigger_state
Specifies the state that triggers the action.
This must be one of these constants: AuStateStop,
AuStateStart, AuStatePause, or AuStateAny.
trigger_prev_state
Specifies the previous state for the trigger.
This must be one of these constants: AuStateStop,
AuStateStart, AuStatePause, or AuStateAny.
trigger_reason
Specifies the reason for the action. This must
be one of these constants: AuReasonUser, AuReasonUnderrun,
element_num
Specifies the index of the element to affect.
new_state Specifies the new state for the flow. This must be one of thses constants: AuStateStop, AuStateStart, or AuStatePause.
AuMakeChangeStateAction sets the action field of action to AuElementActionChangeState and initializes the other fields with the remaining arguments.
AuMakeChangeStateAction is implemented as a macro.
AuMakeSendNotifyAction, AuMakeNoopAction.
audiolib - Network Audio System C Language Interface