Inside Macintosh: Sound /

Chapter 2 - Sound Manager / Sound Manager Reference

Sound Manager Routines / Obtaining Information

SndManagerStatus

You can use the SndManagerStatus function to determine information about all sound channels currently allocated.

FUNCTION SndManagerStatus (theLength: Integer; 
                              theStatus: SMStatusPtr): OSErr;

theLength

The size in bytes of the Sound Manager status record. You should set this field to SizeOf(SMStatus).

theStatus

A pointer to a Sound Manager status record.

DESCRIPTION

The SndManagerStatus function determines information about all currently allocated sound channels. If the SndManagerStatus function executes successfully, the fields of the record specified by theStatus accurately describe the current status of the Sound Manager.

SPECIAL CONSIDERATIONS

You can call the SndManagerStatus function at interrupt time.

ASSEMBLY-LANGUAGE INFORMATION

The trap macro and routine selector for the SndManagerStatus function are

Trap macro	Selector
_SoundDispatch	$00140008

RESULT CODES

noErr

0

No error

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