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我將Qt中的可可代碼合併在一起，但不幸發現符號未找到錯誤。 我使用MAC OSX 10.8.2和Qt Creator來構建我的代碼。Qt + cocoa：架構x86_64的未定義符號
appcontroller.h
#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
要複製到剪貼板，開關以純文本模式
appcontroller.mm
#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
要複製到剪貼板，開關以純文本模式
and ObjectiveC-Integrate.pro
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
要複製到剪貼板，很多在谷歌搜索後，切換以純文本模式 並查看其他職位，我不能讓我的機器上我的代碼生成。 當我在main.cpp中包含上面的COCOA頭文件時，成千上萬的錯誤出現（@ stray）。