如何将NSString字符串放入剪贴板

下面是如何将字符串放入剪贴板的方法：

@implementation NSString (PasteboardGoodies)

- (void) sendToPasteboard

{

            [[NSPasteboard generalPasteboard] 

             declareTypes: [NSArray arrayWithObject: NSStringPboardType]

             owner:nil];

            [[NSPasteboard generalPasteboard]

             setString: self

             forType: NSStringPboardType];

} // sendToPasteboard

@end // PasteboardGoodies