Type Alias openxr_sys::pfn::GetFaceExpressionWeightsFB

pub type GetFaceExpressionWeightsFB = unsafe extern "system" fn(face_tracker: FaceTrackerFB, expression_info: *const FaceExpressionInfoFB, expression_weights: *mut FaceExpressionWeightsFB) -> Result;

See xrGetFaceExpressionWeightsFB - defined by XR_FB_face_tracking