From 76f948c45a5dae329c59e673ae45a92ca75c7fe9 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Wed, 18 Sep 2019 16:17:41 +0100
Subject: [PATCH] osx add the pixeldensity to screen info.

---
 native/Avalonia.Native/inc/avalonia-native.h | 1 +
 native/Avalonia.Native/src/OSX/Screens.mm    | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/native/Avalonia.Native/inc/avalonia-native.h b/native/Avalonia.Native/inc/avalonia-native.h
index 36e16c24d1..e000c88836 100644
--- a/native/Avalonia.Native/inc/avalonia-native.h
+++ b/native/Avalonia.Native/inc/avalonia-native.h
@@ -52,6 +52,7 @@ struct AvnScreen
 {
     AvnRect Bounds;
     AvnRect WorkingArea;
+    float PixelDenisty;
     bool Primary;
 };
 
diff --git a/native/Avalonia.Native/src/OSX/Screens.mm b/native/Avalonia.Native/src/OSX/Screens.mm
index 9d436b98c5..1c9f78873b 100644
--- a/native/Avalonia.Native/src/OSX/Screens.mm
+++ b/native/Avalonia.Native/src/OSX/Screens.mm
@@ -38,6 +38,8 @@ class Screens : public ComSingleObject<IAvnScreens, &IID_IAvnScreens>
             ret->WorkingArea.Height = [screen visibleFrame].size.height;
             ret->WorkingArea.Width = [screen visibleFrame].size.width;
             
+            ret->PixelDenisty = [screen backingScaleFactor];
+            
             ret->Primary = index == 0;
             
             return S_OK;