InvokeDartCallback typedef
InvokeDartCallback = Pointer<NativeFunction<Void Function(LongLong requestId, Pointer<Char> method, Pointer<Void> data, LongLong len)> >
Dart callback signature
Implementation
typedef InvokeDartCallback = ffi.Pointer<
ffi.NativeFunction<
ffi.Void Function(ffi.LongLong requestId, ffi.Pointer<ffi.Char> method,
ffi.Pointer<ffi.Void> data, ffi.LongLong len)>>;