Inside Macintosh: Sound

Sound Command Records

A sound command record describes a sound command that you send to a sound channel using the SndDoCommand or SndDoImmediate function. The SndCommand data type defines a sound command record.



 
TYPE SndCommand =

PACKED RECORD

    cmd:            Integer;        {command number}

    param1:         Integer;        {first parameter}

    param2:         LongInt;        {second parameter}

END;

cmd: The number of the sound command you wish to execute.
param1: The first parameter of the sound command.
param2: The second parameter of the sound command.

The meaning of the param1 and param2 fields depends on the particular sound command being issued. See "Sound Command Numbers" for a description of the sound commands your application can use.