Bernhard Kölbl (@besentv) commented about dlls/windows.media.speech/private.h:
#define DEFINE_IINSPECTABLE_OUTER( pfx, iface_type, impl_type, outer_iface ) \ DEFINE_IINSPECTABLE_( pfx, iface_type, impl_type, impl_from_##iface_type, iface_type##_iface, impl->outer_iface )
+struct synth_provider +{
- struct IVoiceInformation **voices;
- unsigned num_voices;
- void (*dispose)(struct synth_provider *provider);
This function pointer seems unused.