QuickTime 3 Reference

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Instrument Knob Record

An instrument knob record 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.
© 1997 Apple Computer, Inc.

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