Here's my struct. Theres more in it but i'm only posting relevant code. This is in classes.h

struct thing
{
     thing()
     {};

     thing(SDL_Surface image)
     {
          this->image = image;
     }

     SDL_Surface image;
}

Here's my object I want to create. This is in things.h.

thing tree1(tree);

The sdl_surface doesn't need to point to an image yet, I just want it to be named and in memory so I can use it for something else. When I try and compile this I get this error.

error C2065: 'tree' : undeclared identifier

Now obviously i'm doing something wrong but I don't know what. I have sdl and sdl_image included in both files and I have classes.h included in things.h. Is what i'm trying to do even possible?

SDL_Surface should only ever be handled as a pointer, since it's designed to be reference counted. Copying it by value can cause some bad things to happen, so don't do that.




However, that's not what's causing the compiler error here. Your problem is that "thing tree1(tree);" is interpreting 'tree' as a type name, and you have not defined this before referring to it.

Quote:
However, that's not what's causing the compiler error here. Your problem is that "thing tree1(tree);" is interpreting 'tree' as a type name, and you have not defined this before referring to it.

Why is it doing that? Isn't SDL_Surface the type name? What am I supposed to be defining?

Hi,

How have you declared : tree ?
Chances are that you didn't declare it correctly, besides you should take the advice of hh10k about using pointer.