API doesn't expose runtimeLib

[relf108]

I'm trying to manually call a global function and was expecting to be able to use dart-native's dynamic library runtimeLib. I've realized this is not exposed in the API and am wondering how I would access dart-native's dynamic library as is. My thoughts were DynamicLibrary.open('dart_native.framework/dart_native'); but I'm unsure as to whether I need to manually register a dealloc callback for the dynamic library in this scenario and whether my lib instance and yours would conflict.
below is all the code I'm using to access the global function. I should note, I'm getting syntax errors on this saying "Type given to lookup function must be a valid 'dart.ffi' native function type" despite CFURLRef doing nothing but extending a Struct
class CFURLRef extends Struct{}
It's my understanding Struct is a native type. Any thoughts as to what's going on here?

/// C function `CFURLCreateWithFileSystemPath`.
CFURLRef CFURLCreateWithFileSystemPath(
  CFAllocatorRef arg0,
  CFStringRef arg1,
  CFURLPathStyle arg2,
  bool arg3,
) {
  return _CFURLCreateWithFileSystemPath(arg0, arg1, arg2, arg3);
}

final _CFURLCreateWithFileSystemPath_Dart _CFURLCreateWithFileSystemPath =
    _dynamicLibrary.lookupFunction<_CFURLCreateWithFileSystemPath_C,
        _CFURLCreateWithFileSystemPath_Dart>(
  'CFURLCreateWithFileSystemPath',
);
typedef _CFURLCreateWithFileSystemPath_C = CFURLRef Function(
  CFAllocatorRef arg0,
  CFStringRef arg1,
  CFURLPathStyle arg2,
  bool arg3,
);
typedef _CFURLCreateWithFileSystemPath_Dart = CFURLRef Function(
  CFAllocatorRef arg0,
  CFStringRef arg1,
  CFURLPathStyle arg2,
  bool arg3,
);

[yulingtianxia]

DartNative doesn't support global C function for now, but you can call it using dart:ffi, here is the tutorial: https://dart.dev/guides/libraries/c-interop. The runtimeLib is private. You will create your native framework/library, it's not conflict with dart_native.framework.

When you pass an instance of NSObject or CGRect * to C function, you should pass its pointer.

[relf108]

That clears everything up. Thanks very much for your help.