Function FMOD_ChannelGroup_Get3DConeSettings 

pub unsafe extern "C" fn FMOD_ChannelGroup_Get3DConeSettings(
    channelgroup: *mut FMOD_CHANNELGROUP,
    insideconeangle: *mut f32,
    outsideconeangle: *mut f32,
    outsidevolume: *mut f32,
) -> FMOD_RESULT