char *filename = "data/credits.bmp";//path to the a zipped image
SDL_RWops *rw; //a SDL Read/Write Operations Ptr
ZZIP_FILE *file; // ZZIP_FILE is the zzip equivalent of the stdio FILE.
file = zzip_open(filename, 0);//almost like fopen() except the 2 parameter is unused
// !!! THIS IF STATEMENT RETURNS TRUE, MEANING zzip_open() returned NULL
if(file == NULL) 
{
    printf("FILE ptr is NULL\n");
    throw;
}
int filesize = 0;//this will store the file's actual size
//create a buffer of size bytes
const int bytes = 800*600*4;
//Uint8
char *buffer = new char[bytes];
//now decompress the file, and record the filesize
filesize = zzip_read( file, buffer, bytes );
rw = SDL_RWFromMem(buffer, filesize);
if( rw == NULL ) 
{
  puts("RW is Null");
  throw;
}
SDL_Surface *temp1;
temp1 = IMG_Load_RW(rw, 0);

SDL_Surface* LoadImageFromZipFile(const char *File, const char *ZipFile, bool ColourKeying, int Red, int Green, int Blue){	//check files names are valid	if((!File) || (!ZipFile))		return NULL;	//zip file vars	unzFile			ZFile;	unz_file_info	ZFileInfo;	//buffer for the uncompressd image	void *Buffer = NULL;	//needed to create a surface from the image buffer	SDL_RWops *RWop;	//temp image surface	SDL_Surface *Image;	//open and locate the file inside the zip	ZFile = unzOpen(ZipFile);	if(!ZFile)		return NULL;	unzLocateFile(ZFile, File, 1);	if(unzOpenCurrentFile(ZFile) != UNZ_OK)		return NULL;	//file located and opened ok so get the file info and create the buffer	unzGetCurrentFileInfo(ZFile, &ZFileInfo, NULL, 0, NULL, 0, NULL, 0);	Buffer = (void*) malloc(ZFileInfo.uncompressed_size);	if(Buffer == NULL)	{		unzCloseCurrentFile(ZFile);		unzClose(ZFile);		return NULL;	}	//read the image into the buffer and close the zip file	unzReadCurrentFile(ZFile, Buffer, ZFileInfo.uncompressed_size);	unzCloseCurrentFile(ZFile);	unzClose(ZFile);	//create an SDL_Surface from the image loaded in memory	RWop = SDL_RWFromMem(Buffer, ZFileInfo.uncompressed_size);	Image = IMG_Load_RW(RWop, 0);	if(Image == NULL)	{		free(Buffer);		Buffer = NULL;		Image = NULL;		return NULL;	}		if(ColourKeying == true)	{		SDL_SetColorKey(Image, (SDL_SRCCOLORKEY|SDL_RLEACCEL),					    SDL_MapRGB(Image->format, (Uint8)Red, (Uint8)Green, (Uint8)Blue));		SDL_Surface *Disp = SDL_DisplayFormat(Image);		SDL_FreeSurface(Image);		free(Buffer);		Image = NULL;		Buffer = NULL;		return Disp;	}	else	{		SDL_Surface *Temp = SDL_DisplayFormat(Image);		SDL_FreeSurface(Image);		free(Buffer);		Image = NULL;		Buffer = NULL;		return Temp;	}}