4 typedef void (*init_func
)();
5 typedef void (*reshape_func
)(int, int);
6 typedef void (*draw_func
)();
7 typedef int (*key_func
)(unsigned key
);
10 void set_window_size(int width
, int height
);
11 int window_width(void);
12 int window_height(void);
14 int run(int argc
, char **argv
,