stdafx.h

#pragma once


#define WIN32_LEAN_AND_MEAN		// Exclude rarely-used stuff from Windows headers
#include <stdio.h>
#include <tchar.h>
#include <string>


// TODO: reference additional headers your program requires here
#include "SDL/SDL.h"
#include "SDL/SDL_image.h"
#include "Display.h"
#include "strekman.h"


strekman.cpp

#include "stdafx.h"

void Strekman::set_display_pointer( Display *pointer )
{
	display = pointer;
}


void Strekman::print_man( int x, int y )
{
	if( display )
		display->print_image( "test.png", x, y );
}


strekman.h

#pragma once

class Strekman
{
 public:
	 Strekman() {};
	 virtual ~Strekman() {};

	int print_man( int x, int y );
	int set_display_pointer( Display *pointer );

 private:
	Display *display;
};


Display.cpp

#include "stdafx.h"

/* Ativates the window */
int Display::Activate( int a, int b, int c, int d )
{
    //Initialize all SDL subsystems
    if(SDL_Init( SDL_INIT_EVERYTHING ) == -1 )
	{
		return 1;
    }

    screen = SDL_SetVideoMode( a, b, c, d );

    if( screen == NULL )
	{
		return 1;
    }

    SDL_WM_SetCaption( "WCS", NULL );
    return 0;
}


SDL_Surface *Display::load_image( std::string filename )
{
    SDL_Surface* loadedImage = NULL;
    SDL_Surface* optimizedImage = NULL;
    loadedImage = IMG_Load( filename.c_str() );

    if( loadedImage != NULL )
    {
        optimizedImage = SDL_DisplayFormat( loadedImage );
        SDL_FreeSurface( loadedImage );
    }

    return optimizedImage;
}

int Display::print_image( std::string filename, int x, int y )
{
	message = load_image( filename );
	apply_surface( x, y, message, screen );
	SDL_Flip( screen );
}

void Display::apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination )
{
    SDL_Rect offset;

    offset.x = x;
    offset.y = y;

    SDL_BlitSurface( source, NULL, destination, &offset );
}


Display.h


#pragma once

class Display
{
 public:
	 Display() {};
	 virtual ~Display() {}

	 int Activate( int a, int b, int c, int d );
	 int print_image( std::string filename, int x, int y );

 private:
	 //The surfaces that will be used
 	 void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination );
 	 SDL_Surface *load_image( std::string filename );
 	 SDL_Surface *message;
 	 SDL_Surface *background;
	 SDL_Surface *screen;
};