Dedicating a class to drawing [SOLVED]

[Kiatro]

I am trying to make a class ("render") that will handle all drawing within my program, so that if I had a sprite I wanted to draw I would send it to a function such as:

void draw(sf::Sprite);

Now so far it is working but I have run into trouble whether or not to declare the main RenderWindow in this class, e.g:

private:
sf::RenderWindow window(sf::VideoMode(800, 800), "A Game That Loves You!");

With this I would only be able to access it within this class but also make an accessory function to access it outside. Now here is my issue:

I have a couple of errors, one of them has this error message:

..\..\..\Assets\SFML-2.1\include\SFML\System\NonCopyable.hpp|67|error: 'sf::NonCopyable::NonCopyable(const sf::NonCopyable&)' is private|

and the other error is:

F:\Programming\C++ SFML\SFML Development\render.cpp|16|note: synthesized method 'sf::RenderWindow::RenderWindow(const sf::RenderWindow&)' first required here |

This is the overall code I have at the moment:
render.h:

#ifndef RENDER_H
#define RENDER_H
#include <SFML/Graphics.hpp>


class render
{
    public:
        render();
        void draw(sf::Sprite);
        sf::RenderWindow getWindow();
    protected:
    private:

        sf::RenderWindow window;
};

#endif // RENDER_H
 

render.cpp:

#include "render.h"
#include <SFML/Graphics.hpp>
#include <iostream>

render::render()
{
    sf::RenderWindow window(sf::VideoMode(800, 800), "A Game That Loves You!");
}

void render::draw(sf::Sprite sprite)
{
    //empty!
}

sf::RenderWindow render::getWindow()
{
    return window;
}
 

If anyone could explain or give a solution to these errors I would be very grateful, thanks. (:

[zsbzsb]

Pass by reference instead of value 

[Kiatro]

Wow, thanks - didn't think it was such a silly mistake! 

[Nexus]

Another mistake lies here:

render::render()
{
    sf::RenderWindow window(sf::VideoMode(800, 800), "A Game That Loves You!");
}

You're declaring a local variable in the constructor. It won't outlive the function call, so it's completely useless. What you should do instead is using the constructor initializer list to initialize member variables:

render::render()
: window(sf::VideoMode(800, 800), "A Game That Loves You!")
{
}

By the way, "render" (as a verb) is not an ideal name for a class, consider "renderer". And you should think about encapsulation, returning the internal window is a rather bad idea.