From: Alan Third <alan@idiocy.org>
Date: Sun, 8 Oct 2023 22:11:46 +0000 (+0100)
Subject: Get NS screen resolution from system
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=c47c4d9deb5b69641e8116d6e77fb89cf49facb8;p=emacs.git

Get NS screen resolution from system

* src/nsterm.m (ns_initialize_display_info): Query the screen
deviceDescription for the resolution instead of hard-coding it.

(cherry picked from commit f3dec3439fd5aee885a76622f384f6c7ca67d128)
---

diff --git a/src/nsterm.m b/src/nsterm.m
index 2f736980ea6..dc4aef55113 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -5256,8 +5256,11 @@ ns_initialize_display_info (struct ns_display_info *dpyinfo)
     NSScreen *screen = [NSScreen mainScreen];
     NSWindowDepth depth = [screen depth];
 
-    dpyinfo->resx = 72.27; /* used 75.0, but this makes pt == pixel, expected */
-    dpyinfo->resy = 72.27;
+    NSDictionary *dict = [screen deviceDescription];
+    NSSize res = [[dict objectForKey:@"NSDeviceResolution"] sizeValue];
+    dpyinfo->resx = res.width;
+    dpyinfo->resy = res.height;
+
     dpyinfo->color_p = ![NSDeviceWhiteColorSpace isEqualToString:
                                                   NSColorSpaceFromDepth (depth)]
                 && ![NSCalibratedWhiteColorSpace isEqualToString: