When SQ_LibraryHandler loaded all found libraries, KSquirrel obtains the ability to decode any supported image format. Here is a sample code to decode some image with library. Error handling is turned off. You can find real examples in source distribution of ksquirrel-libs.

Sample 
	int            i, j, current = 0;
	fmt_info       finfo;
	RGBA           *image = NULL, *scan;
	fmt_codec_base *codeK;

	QString file = "/home/krasu/animation1.gif";

	Determine the library and codec
	codeK = SQ_LibraryHandler::instance()->libraryForFile(file)->codec;

	Init: open file, etc.
	codeK->read_init(file.ascii());

	while(true)
	{
		i = codeK->read_next();
		
		Break, if we've decoded all available images in file
		if(i == SQE_NOTOK)
			break;

		Obtain the latest information (current image dimensions, etc.)
		finfo = codeK->information();

		realloc memory for new image
		image = (RGBA *)realloc(image, finfo.image[current].w * finfo.image[current].h * sizeof(RGBA));
		
		fill with white color (RGBA(255,255,255,255))
		memset(image, 255, finfo.image[current].w * finfo.image[current].h * sizeof(RGBA));

		for(int pass = 0;pass < finfo.image[current].passes;pass++)
		{
			codeK->read_next_pass();

			for(j = 0;j < finfo.image[current].h;j++)
			{
				scan = image + j * finfo.image[current].w;
				codeK->read_scanline(scan);
			}
		}

		Do something with decoded image here.
		...

		current++;
	}

	codeK->read_close();

	free(image);