if( optimizedImage != NULL )
        {
            //Map the color key
            Uint32 colorkey = SDL_MapRGB( optimizedImage->format, 0, 0xFF, 0xFF );

            //Set all pixels of color R 0, G 0xFF, B 0xFF to be transparent
            SDL_SetColorKey( optimizedImage, SDL_SRCCOLORKEY, colorkey );
        }
    }

#include "SDL.h"
#include "SDL_image.h"
#include <string>

//Screen attributes
const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
const int SCREEN_BPP = 32;

//The surfaces
SDL_Surface *background = NULL;
SDL_Surface *foo = NULL;
SDL_Surface *bowser = NULL;
SDL_Surface *screen = NULL;

//The event structure
SDL_Event event;

SDL_Surface *load_image( std::string filename )
{
    //The image that's loaded
    SDL_Surface* loadedImage = NULL;

    //The optimized image that will be used
    SDL_Surface* optimizedImage = NULL;

    //Load the image
    loadedImage = IMG_Load( filename.c_str() );

    //If the image loaded
    if( loadedImage != NULL )
    {
        //Create an optimized image
        optimizedImage = SDL_DisplayFormat( loadedImage );

        //Free the old image
        SDL_FreeSurface( loadedImage );

        //If the image was optimized just fine
        if( optimizedImage != NULL )
        {
            //Map the color key
            Uint32 colorkey = SDL_MapRGB( optimizedImage->format, 0, 0xFF, 0xFF );

            //Set all pixels of color R 0, G 0xFF, B 0xFF to be transparent
            SDL_SetColorKey( optimizedImage, SDL_SRCCOLORKEY, colorkey );
        }
    }

    //Return the optimized image
    return optimizedImage;
}

void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination )
{
    //Temporary rectangle to hold the offsets
    SDL_Rect offset;

    //Get the offsets
    offset.x = x;
    offset.y = y;

    //Blit the surface
    SDL_BlitSurface( source, NULL, destination, &offset );
}

bool init()
{
    //Initialize all SDL subsystems
    if( SDL_Init( SDL_INIT_EVERYTHING ) == -1 )
    {
        return 1;
    }

    //Set up the screen
    screen = SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_SWSURFACE );

    //If there was an error in setting up the screen
    if( screen == NULL )
    {
        return 1;
    }

    //Set the window caption
    SDL_WM_SetCaption( "Foo says \"Hello!\"", NULL );

    //If everything initialized fine
    return true;
}

bool load_files()
{
    //Load the background image
    background = load_image( "background.png" );

    //If the background didn't load
    if( background == NULL )
    {
        return false;
    }

    //Load the stick figure
    foo = load_image( "foo.png" );
	bowser = load_image( "bowser.png" );
    //If the stick figure didn't load
    if( foo == NULL||bowser == NULL )
    {
        return false;
    }

    return true;
}

void clean_up()
{
    //Free the surfaces
    SDL_FreeSurface( background );
    SDL_FreeSurface( foo );
	SDL_FreeSurface( bowser );

    //Quit SDL
    SDL_Quit();
}

int main( int argc, char* args[] )
{
    //Quit flag
    bool quit = false;

    //Initialize
    if( init() == false )
    {
        return 1;
    }

    //Load the files
    if( load_files() == false )
    {
        return 1;
    }

    //Apply the surfaces to the screen
    apply_surface( 0, 0, background, screen );
    apply_surface( 40, 190, foo, screen );
	apply_surface( 340, 190, bowser, screen );

    //Update the screen
    if( SDL_Flip( screen ) == -1 )
    {
        return 1;
    }

    //While the user hasn't quit
    while( quit == false )
    {
        //While there's events to handle
        while( SDL_PollEvent( &event ) )
        {
            //If the user has Xed out the window
            if( event.type == SDL_QUIT )
            {
                //Quit the program
                quit = true;
            }
        }
    }

    //Free the surfaces and quit SDL
    clean_up();

    return 0;
}

#include "SDL.h"#include "SDL_image.h"#include <string>//Screen attributesconst int SCREEN_WIDTH = 640;const int SCREEN_HEIGHT = 480;const int SCREEN_BPP = 32;//The surfacesSDL_Surface *background = NULL;SDL_Surface *foo = NULL;SDL_Surface *bowser = NULL;SDL_Surface *screen = NULL;//The event structureSDL_Event event;Uint32 colorkey;SDL_Surface *load_image( std::string filename, Uint32 &colorkey ){    //The image that's loaded    SDL_Surface* loadedImage = NULL;    //The optimized image that will be used    SDL_Surface* optimizedImage = NULL;    //Load the image    loadedImage = IMG_Load( filename.c_str() );    //If the image loaded    if( loadedImage != NULL )    {        //Create an optimized image        optimizedImage = SDL_DisplayFormat( loadedImage );        //Free the old image        SDL_FreeSurface( loadedImage );        //If the image was optimized just fine        if( optimizedImage != NULL )        {            //Map the color key            colorkey = SDL_MapRGB( optimizedImage->format, 0, 0xFF, 0xFF );            //Set all pixels of color R 0, G 0xFF, B 0xFF to be transparent            SDL_SetColorKey( optimizedImage, SDL_SRCCOLORKEY, colorkey );        }    }    //Return the optimized image    return optimizedImage;}void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination ){    //Temporary rectangle to hold the offsets    SDL_Rect offset;    //Get the offsets    offset.x = x;    offset.y = y;    //Blit the surface    SDL_BlitSurface( source, NULL, destination, &offset );}bool init(){    //Initialize all SDL subsystems    if( SDL_Init( SDL_INIT_EVERYTHING ) == -1 )    {        return 1;    }    //Set up the screen    screen = SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_SWSURFACE );    //If there was an error in setting up the screen    if( screen == NULL )    {        return 1;    }    //Set the window caption    SDL_WM_SetCaption( "Foo says \"Hello!\"", NULL );    //If everything initialized fine    return true;}bool load_files(){    //Load the background image    background = load_image( "background.png",colorkey );    //If the background didn't load    if( background == NULL )    {        return false;    }    //Load the stick figure    foo = load_image( "foo.png",colorkey );	bowser = load_image( "bowser.png",colorkey );    //If the stick figure didn't load    if( foo == NULL||bowser == NULL )    {        return false;    }    return true;}void clean_up(){    //Free the surfaces    SDL_FreeSurface( background );    SDL_FreeSurface( foo );	SDL_FreeSurface( bowser );    //Quit SDL    SDL_Quit();}int main( int argc, char* args[] ){    //Quit flag    bool quit = false;    //Initialize    if( init() == false )    {        return 1;    }    //Load the files    if( load_files() == false )    {        return 1;    }    //Apply the surfaces to the screen    apply_surface( 0, 0, background, screen );    apply_surface( 40, 190, foo, screen );	apply_surface( 340, 190, bowser, screen );    //Update the screen    if( SDL_Flip( screen ) == -1 )    {        return 1;    }    //While the user hasn't quit    while( quit == false )    {        //While there's events to handle        while( SDL_PollEvent( &event ) )        {            //If the user has Xed out the window            if( event.type == SDL_QUIT )            {                //Quit the program                quit = true;            }        }    }    //Free the surfaces and quit SDL    clean_up();    return 0;}