FcNameConstant (3) - Linux Manuals
FcNameConstant: Get the value for a symbolic constant
NAME
FcNameConstant - Get the value for a symbolic constant
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcBool FcNameConstant (FcChar8 *string, int *result);
DESCRIPTION
Returns whether a symbolic constant with name string is registered, placing the value of the constant in result if present.