typedef struct {
  int  tag;
  char *label;
  void *data;
  int  init;
} TagList;

#define TAG_NULL          0
#define TAG_STRING        1
#define TAG_INT           2
#define TAG_FLOAT         3
#define TAG_LABEL         4
#define TAG_WINDOW_LABEL  5
#define TAG_DONE          99

#define TAG_INIT    1
#define TAG_NOINIT  0

int GetValues(TagList *tags);