#include <fontconfig.h>
FcBool FcPatternAddInteger
(FcPattern *p, const char *object, int i);
FcBool FcPatternAddDouble
(FcPattern *p, const char *object, double d);
FcBool FcPatternAddString
(FcPattern *p, const char *object, const char *s);
FcBool FcPatternAddMatrix
(FcPattern *p, const char *object, const FcMatrix *m);
FcBool FcPatternAddCharSet
(FcPattern *p, const char *object, const FcCharSet *c);
FcBool FcPatternAddBool
(FcPattern *p, const char *object, FcBool b);