Add `get_scale_factor` task to `window` module

2 files changed, 12 insertions, 1 deletions

diff --git a/winit/src/program.rs b/winit/src/program.rs
index c5c3133d..54221c68 100644
--- a/winit/src/program.rs
+++ b/winit/src/program.rs
@@ -1291,7 +1291,7 @@ fn run_action<P, C>(
                 }
             }
             window::Action::GetPosition(id, channel) => {
-                if let Some(window) = window_manager.get_mut(id) {
+                if let Some(window) = window_manager.get(id) {
                     let position = window
                         .raw
                         .inner_position()
@@ -1306,6 +1306,13 @@ fn run_action<P, C>(
                     let _ = channel.send(position);
                 }
             }
+            window::Action::GetScaleFactor(id, channel) => {
+                if let Some(window) = window_manager.get_mut(id) {
+                    let scale_factor = window.raw.scale_factor();
+
+                    let _ = channel.send(scale_factor as f32);
+                }
+            }
             window::Action::Move(id, position) => {
                 if let Some(window) = window_manager.get_mut(id) {
                     window.raw.set_outer_position(
diff --git a/winit/src/program/window_manager.rs b/winit/src/program/window_manager.rs
index fcbf79f6..8cd9fab7 100644
--- a/winit/src/program/window_manager.rs
+++ b/winit/src/program/window_manager.rs
@@ -80,6 +80,10 @@ where
         self.entries.iter_mut().map(|(k, v)| (*k, v))
     }
 
+    pub fn get(&self, id: Id) -> Option<&Window<P, C>> {
+        self.entries.get(&id)
+    }
+
     pub fn get_mut(&mut self, id: Id) -> Option<&mut Window<P, C>> {
         self.entries.get_mut(&id)
     }