man AuMakeChangeStateAction () - initialize an action

Name

AuMakeChangeStateAction - initialize an action

Synopsis

AuMakeChangeStateAction(action, trigger_state, trigger_prev_state, trigger_reason, flow, element_num, new_state)

AuElementAction action;

unsigned char trigger_state;

unsigned char trigger_prev_state;

unsigned char trigger_reason;

AuFlowID flow;

unsigned char element_num;

unsigned char new_state;

Arguments

action
Returns the initialized action.
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, AuReasonOverrun, AuReasonEOF, AuReasonWatermark, AuReasonHardware, or AuReasonAny.
flow
Specifies the ID of the flow to affect.
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.

Description

AuMakeChangeStateAction sets the action field of action to AuElementActionChangeState and initializes the other fields with the remaining arguments.

AuMakeChangeStateAction is implemented as a macro.

See Also

AuMakeSendNotifyAction, AuMakeNoopAction. audiolib - Network Audio System C Language Interface