Inside Macintosh: Sound /

Chapter 2 - Sound Manager / Sound Manager Reference

Sound Manager Routines / Obtaining Information

SndGetSysBeepState

You can use the SndGetSysBeepState procedure to determine if the system alert sound is enabled.

PROCEDURE SndGetSysBeepState (VAR sysBeepState: Integer);

sysBeepState

On exit, the state of the system alert sound.

DESCRIPTION

The SndGetSysBeepState procedure returns one of two states in the sysBeepState parameter, either the sysBeepDisable or the sysBeepEnable constant.

CONST
   sysBeepDisable    = $0000;    {system alert sound disabled}
   sysBeepEnable     = $0001;    {system alert sound enabled}

SPECIAL CONSIDERATIONS

You can call the SndGetSysBeepState procedure at interrupt time.

ASSEMBLY-LANGUAGE INFORMATION

The trap macro and routine selector for the SndGetSysBeepState procedure are

Trap macro	Selector
_SoundDispatch	$00180008