From f7561396b00cac6d6dc8e687ff1ae51140ebfa95 Mon Sep 17 00:00:00 2001
From: Chad Brokaw <cbrokaw@gmail.com>
Date: Wed, 23 Nov 2022 18:04:01 -0500
Subject: [PATCH] compute scale for macOS window

---
 src/backend/mac/window.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/backend/mac/window.rs b/src/backend/mac/window.rs
index 5b8c7e89..f1902d36 100644
--- a/src/backend/mac/window.rs
+++ b/src/backend/mac/window.rs
@@ -1382,8 +1382,8 @@ impl WindowHandle {
 
     /// Get the `Scale` of the window.
     pub fn get_scale(&self) -> Result<Scale, Error> {
-        // TODO: Get actual Scale
-        Ok(Scale::new(1.0, 1.0))
+        let scale_factor: CGFloat = unsafe { msg_send![*self.nsview.load(), backingScaleFactor] };
+        Ok(Scale::new(scale_factor, scale_factor))
     }
 }