This class represents the scrollbar control of a scroll view, and is used to control the scrolling of a document within a scroll view's clip view. There is usually no need to work with NSScroller objects in code, as they are completely configured within a scroll view by Interface Builder.

@interface NSScroller : NSControl
// Convenience Constructors
+ (float)scrollerWidth;
+ (float)scrollerWidthForControlSize:(NSControlSize)controlSize;
// Accessor Methods
- (void)setFloatValue:(float)aFloat knobProportion:(float)percent;
- (void)setControlTint:(NSControlTint)controlTint;
- (NSControlTint)controlTint;
- (void)setArrowsPosition:(NSScrollArrowPosition)where;
- (NSScrollArrowPosition)arrowsPosition;
- (void)setControlSize:(NSControlSize)controlSize;
- (NSControlSize)controlSize;
// Instance Methods
- (void)checkSpaceForParts;
- (void)drawArrow:(NSScrollerArrow)whichArrow highlight:(BOOL)flag;
- (void)drawKnob;
- (void)drawParts;
- (void)highlight:(BOOL)flag;
- (NSScrollerPart)hitPart;
- (float)knobProportion;
- (NSRect)rectForPart:(NSScrollerPart)partCode;
- (NSScrollerPart)testPart:(NSPoint)thePoint;
- (void)trackKnob:(NSEvent *)theEvent;
- (void)trackScrollButtons:(NSEvent *)theEvent;
- (NSUsableScrollerParts)usableParts;