Qt + cocoa : Undefined symbols for architecture x86_64

Hello Everyone,

I am combining cocoa code in Qt, unfortunately a symbol not found error occurred.
I am using MAC OSX 10.8.2 and Qt Creator to build my code.

appcontroller.h

Code:

---

#ifndef APPCONTROLLER_H
#define APPCONTROLLER_H
 
// Import the Cocoa and ImageCaptureCore headers
#include <Cocoa/Cocoa.h>
#include <ImageCaptureCore/ImageCaptureCore.h>
 
// Create a public interface for the controller
@interface appController : NSObject
 
// Create delegates for the device browser and camera device classes.
<ICDeviceBrowserDelegate, ICCameraDeviceDelegate> {
 
// Create an instance variable for the device browser
// and an array for the cameras the browser finds
ICDeviceBrowser * mDeviceBrowser;
NSMutableArray * mCameras;
 
// Define Interface Builder outlets for two
// array controllers -- one for cameras,
// one for the chosen camera's files
IBOutlet  NSArrayController *  mCamerasController;
IBOutlet  NSArrayController *  mMediaFilesController;
 
// Define IB outlets for the tableviews used to
// display the cameras and the chosen camera's contents
IBOutlet  NSTableView * mCameraContentTableView;
IBOutlet  NSTableView * mCamerasTableView;
}
 
 // Cameras are properties of the device browser stored in an array
@property(retain)   NSMutableArray* cameras;
 
 // Create a boolean to indicate whether the camera has images to download
@property(readonly) BOOL            canDownload;
@end
 
 
#endif // APPCONTROLLER_H

---

appcontroller.mm

Code:

---

#include "appcontroller.h"
 
// The camera device returns core graphics image refs,
// convert them to NSImages for table view
@interface NSImageFromCGImageRef: NSValueTransformer {}
@end
@implementation NSImageFromCGImageRef
+ (Class)transformedValueClass      { return [NSImage class]; }
+ (BOOL)allowsReverseTransformation { return NO; }
- (id)transformedValue:(id)item
{
    if ( item )
        return  [[[NSImage alloc] initWithCGImage:(CGImageRef)item size:NSZeroSize] autorelease];
    else
        return nil;
} @end
@implementation appController
 
// synthesize the getters and setters for camera properties
@synthesize cameras = mCameras;
 
// Main task -- on launch
- (void)applicationDidFinishLaunching:(NSNotification*)notification
{
    mCameras = [[NSMutableArray alloc] initWithCapacity:0];
 
    // Get an instance of ICDeviceBrowser
    mDeviceBrowser = [[ICDeviceBrowser alloc] init];
    // Assign a delegate
    mDeviceBrowser.delegate = self;
    // Look for cameras in all available locations
    mDeviceBrowser.browsedDeviceTypeMask = mDeviceBrowser.browsedDeviceTypeMask
            | ICDeviceTypeMaskCamera
            | ICDeviceLocationTypeMaskLocal
            | ICDeviceLocationTypeMaskShared
            | ICDeviceLocationTypeMaskBonjour
            | ICDeviceLocationTypeMaskBluetooth
            | ICDeviceLocationTypeMaskRemote;
    // Start browsing for cameras
    [mDeviceBrowser start];
 
}
 
// Stop browser and release it when done
- (void)applicationWillTerminate:(NSNotification*)notification {
    mDeviceBrowser.delegate = NULL;
    [mDeviceBrowser stop];
    [mDeviceBrowser release];
    [mCameras release];
}
 
// Method delegates for device added and removed
//
// Device browser maintains list of cameras as key-value pairs, so delegate
// must call willChangeValueForKey to modify list
- (void)deviceBrowser:(ICDeviceBrowser*)browser didAddDevice:(ICDevice*)addedDevice moreComing:(BOOL)moreComing
{
    if ( addedDevice.type & ICDeviceTypeCamera )
    {
        addedDevice.delegate = self;
 
        // implement manual observer notification for the cameras property
        [self willChangeValueForKey:@"cameras"];
        [mCameras addObject:addedDevice];
        [self didChangeValueForKey:@"cameras"];
    }
}
 
 
- (void)deviceBrowser:(ICDeviceBrowser*)browser didRemoveDevice:(ICDevice*)device moreGoing:(BOOL)moreGoing
{
    device.delegate = NULL;
 
    // implement manual observer notification for the cameras property
    [self willChangeValueForKey:@"cameras"];
    [mCameras removeObject:device];
    [self didChangeValueForKey:@"cameras"];
}
 
- (void)didRemoveDevice:(ICDevice*)removedDevice
{
    [mCamerasController removeObject:removedDevice];
}
 
// Check to see if the camera has image files to download
- (void)observeValueForKeyPath:(NSString*)keyPath ofObject:(id)object change:(NSDictionary*)change context:(void*)context
{
    if ( [keyPath isEqualToString:@"selectedObjects"] && (object == mMediaFilesController) )
    {
        [self willChangeValueForKey:@"canDownload"];
        [self didChangeValueForKey:@"canDownload"];
    }
}
 
- (BOOL)canDownload
{
    if ( [[mMediaFilesController selectedObjects] count] )
        return YES;
    else
        return NO;
}
 
// Download images
// (Add a download button in interface builder -- use boolean to enable button)
- (void)downloadFiles:(NSArray*)files
{
    NSDictionary* options = [NSDictionary dictionaryWithObject:[NSURL fileURLWithPath:[@"~/Pictures" stringByExpandingTildeInPath]] forKey:ICDownloadsDirectoryURL];
 
    for ( ICCameraFile* f in files )
    {
        [f.device requestDownloadFile:f options:options downloadDelegate:self didDownloadSelector:@selector(didDownloadFile:error:options:contextInfo:) contextInfo:NULL];
    }
}
 
// Done downloading -- log results to console for debugging
- (void)didDownloadFile:(ICCameraFile*)file error:(NSError*)error options:(NSDictionary*)options contextInfo:(void*)contextInfo
{
    NSLog( @"didDownloadFile called with:\n" );
    NSLog( @"  file:        %@\n", file );
    NSLog( @"  error:       %@\n", error );
    NSLog( @"  options:     %@\n", options );
    NSLog( @"  contextInfo: %p\n", contextInfo );
}
@end

---

and
ObjectiveC-Integrate.pro

Code:

---

QT       += core gui multimedia
 
TARGET = ObjectiveC-Integrate
TEMPLATE = app
 
 
SOURCES += main.cpp\
        mainwindow.cpp
 
HEADERS  += mainwindow.h
 
FORMS    += mainwindow.ui
 
CONFIG -= app_bundle
CONFIG += x86_64
CONFIG -= i386
LIBS += -lssl -lcrypto
LIBS += -framework AppKit
 
OBJECTIVE_HEADERS += \
    appcontroller.h
 
OBJECTIVE_SOURCES += \
    appcontroller.mm

---

after a lot of search on google and review other posts i am unable to make my code BUILD on my machine.
Please help me out of this problem.