Man page - fcfontrenderprepare(3)
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Manual
FcFontRenderPrepare
NAMESYNOPSIS
DESCRIPTION
NAME
FcFontRenderPrepare - Prepare pattern for loading font file
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcPattern * FcFontRenderPrepare (FcConfig * config , FcPattern * pat , FcPattern * font );
DESCRIPTION
Creates a new pattern consisting of elements of font not appearing in pat , elements of pat not appearing in font and the best matching value from pat for elements appearing in both. The result is passed to FcConfigSubstituteWithPat with kind FcMatchFont and then returned.