This is a subclass of NSControl that allows users to change an incremental value by clicking on portions of the control that either increment or decrement the value of the control by some predetermined amount.

@interface NSStepper : NSControl
// Accessor Methods
- (void)setMaxValue:(double)maxValue;
- (double)maxValue;
- (void)setMinValue:(double)minValue;
- (double)minValue;
- (void)setAutorepeat:(BOOL)autorepeat;
- (BOOL)autorepeat;
- (void)setIncrement:(double)increment;
- (double)increment;
- (void)setValueWraps:(BOOL)valueWraps;
- (BOOL)valueWraps;