anchor.diff:            }
           }
         }
  -      parameter.type ??= 'void';
  +      if (parameter.type == null) {
  +        print('Line: $lineIndex');
  +        throw Exception('Can\'t find type.');
  +      }
         if (line.contains('*', line.indexOf(win32Keyword)) &&
             (!parameter.type.contains('Pointer')) &&
             (!(['LPWSTR', 'LPCWSTR'].contains(parameter.type)))) {
  
positive.code:   'LRESULT': 'IntPtr',
    'DESKTOP_WALLPAPER_POSITION': 'Int32',
    'WNDPROC': 'IntPtr',
    'INT': 'Int32',
    'UINT': 'Uint32',
    'DWORD': 'Uint32',
  
negative.code: import '../structs.dart';
  import '../win32.dart';\n
  ''';
  }
  
  const typeMappings = <String, String>{
  