FcConfigAppFontClear (3) - Linux Manuals
FcConfigAppFontClear: Remove all app fonts from font database
NAME
FcConfigAppFontClear - Remove all app fonts from font database
SYNOPSIS
#include <fontconfig/fontconfig.h>
void FcConfigAppFontClear (FcConfig *config);
DESCRIPTION
Clears the set of application-specific fonts. If config is NULL, the current configuration is used.