#include <u.h>#include <libc.h>#include <draw.h> int main(int argc, char **argv){	Image *i; 	if(initdraw(nil, nil, "drawydata") == -1){		fprint(2, "initdraw: %r\n");		return 1;	} 	i = readimage(display, 0, 0);	if(!i){		fprint(2, "readimage: %r\n");		return 1;	} 	line(screen, (Point){15, 15}, (Point){400, 400},		Endarrow, Endsquare, 100, i, (Point){0, 0}); 	flushimage(display, 1);	sleep(5000); 	return 0;}