Man page - fcweighttoopentypedouble(3)
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Manual
FcWeightToOpenTypeDouble
NAMESYNOPSIS
DESCRIPTION
SINCE
NAME
FcWeightToOpenTypeDouble - Convert from fontconfig weight values to OpenType ones
SYNOPSIS
#include <fontconfig/fontconfig.h>
double FcWeightToOpenTypeDouble (double ot_weight );
DESCRIPTION
FcWeightToOpenTypeDouble is the inverse of FcWeightFromOpenType . If the input is less than FC_WEIGHT_THIN or greater than FC_WEIGHT_EXTRABLACK, returns -1. Otherwise returns a number in the range 1 to 1000.
SINCE
version 2.12.92