FcWeightFromOpenTypeDouble3
Convert from opentype weight values to fontconfig ones
Usage
#include <fontconfig/fontconfig.h>
double FcWeightFromOpenTypeDouble (double ot_weight);
Overview
FcWeightFromOpenTypeDouble returns an double value to use with FC_WEIGHT, from an double in the 1..1000 range, resembling the numbers from OpenType specification's OS/2 usWeight numbers, which are also similar to CSS font-weight numbers. If input is negative, zero, or greater than 1000, returns -1. This function linearly interpolates between various FC_WEIGHT_* constants. As such, the returned value does not necessarily match any of the predefined constants.
Since
version 2.12.92
Releases
5 releases since Debian 10 (Buster); the text changed 4 times.