use iris::harness::Harness; use iris::prelude::*; /// `PixelRegion` neither compares nor prints. pub fn corners(h: &Harness, id: &impl IdLike) -> (f32, f32, f32, f32) { let region = h.region(id).expect("widget drew nothing"); ( region.top_left.x, region.top_left.y, region.bot_right.x, region.bot_right.y, ) }