change NSButton cursor

CustomCursorButton.h

//
//  CustomCursorButton.h
//  demo
//
//  Created by 61 on 11/8/12.
//  Copyright (c) 2012 61. All rights reserved.
//

#import <Cocoa/Cocoa.h>

@interface CustomCursorButton : NSButton
@property (nonatomic, strong) NSCursor *cursor;
@end

CustomCursorButton.m

//
//  CustomCursorButton.m
//  demo
//
//  Created by 61 on 11/8/12.
//  Copyright (c) 2012 61. All rights reserved.
//

#import "CustomCursorButton.h"

@implementation CustomCursorButton
- (void)resetCursorRects
{
    if (self.cursor) {
        [self addCursorRect:[self bounds] cursor:self.cursor];
    } else {
        [super resetCursorRects];
    }
}
@end