Using native Cocoa frameworks with OF

You can use Objective-C++ to bridge C++ code (OF) and Objective-C code (Cocoa stuff). Objective-C++ is a combination of Objective-C and C++ where you can access the features of both languages in the same source file. Objective-C++ files have a file extension of ".mm" (rather than .cpp or .m).

What I would do is create a header file with C++ functions/classes that you can call from your OF C++ code. Then create a corresponding .mm file and implement those functions/classes using Cocoa frameworks. Things can get tricky of you need to have data members in a C++ class that are actually instances of Objective-C classes. Then you must hide the Objective-C things from the header file, since the header file must compile when included from C++ code, which doesn't understand about Objective-C classes.

For example, in the header file:

void CallSomeCocoaFunction();

and in the .mm file:

#import <AppKit/AppKit.h>

void CallSomeCocoaFunction() {
   // Do Cocoa stuff here
}

I don't know how CoreLocation works, so I can't say much about your specific problem.