QuickTime Music Architecture

Instrument Knob Structure

An instrument knob structure contains information about an instrument knob. It is defined by the InstKnobRec data type.



 
struct InstKnobRec {

    long                        number;

    long                        value;

};

typedef struct InstKnobRec InstKnobRec;

number: A knob ID or index. A nonzero value in the high byte indicates that it is an ID. The knob index ranges from 1 to the number of knobs; the ID is an arbitrary number.
value: The value the knob is set to.