call pasteboard on mac os x from go

pasteboard.go

package main

/*
#cgo CFLAGS: -x objective-c
#cgo LDFLAGS: -framework Cocoa
#import <Cocoa/Cocoa.h>

int
StartApp(void) {
    [NSAutoreleasePool new];
    [NSApplication sharedApplication];

    NSPasteboard *pasteBoard = [NSPasteboard generalPasteboard];
    [pasteBoard declareTypes:[NSArray arrayWithObjects:NSStringPboardType, nil] owner:nil];
    [pasteBoard setString: @"test2" forType:NSStringPboardType];

    NSArray *classes = [[NSArray alloc] initWithObjects:[NSString class], nil];
    NSDictionary *options = [NSDictionary dictionary];
    NSArray *copiedItems = [pasteBoard readObjectsForClasses:classes options:options];
    if (copiedItems != nil) {
        NSLog(@"%@", copiedItems[0]);

    }

    return 0;
}
*/
import "C"

func main() {
	C.StartApp()
}