diff --git a/runtime/src/window.rs b/runtime/src/window.rs
index a2d8b339..2a05a96d 100644
--- a/runtime/src/window.rs
+++ b/runtime/src/window.rs
@@ -16,7 +16,7 @@ use raw_window_handle::{HasDisplayHandle, HasWindowHandle};
 
 /// An operation to be performed on some window.
 pub enum Action {
-    /// Opens a new window with some [`Settings`].
+    /// Open a new window with some [`Settings`].
     Open(Id, Settings, oneshot::Sender<Id>),
 
     /// Close the window and exits the application.
@@ -151,7 +151,7 @@ pub enum Action {
     /// Screenshot the viewport of the window.
     Screenshot(Id, oneshot::Sender<Screenshot>),
 
-    /// Enables mouse passthrough for the given window.
+    /// Enable mouse passthrough for the given window.
     ///
     /// This disables mouse events for the window and passes mouse events
     /// through to whatever window is underneath.
@@ -175,10 +175,13 @@ pub enum Action {
     /// Set the window size increment.
     SetResizeIncrements(Id, Option<Size>),
 
-    /// Redraws all the windows.
+    /// Get the logical dimensions of the monitor containing the window with the given [`Id`].
+    GetMonitorSize(Id, oneshot::Sender<Option<Size>>),
+
+    /// Redraw all the windows.
     RedrawAll,
 
-    /// Recomputes the layouts of all the windows.
+    /// Recompute the layouts of all the windows.
     RelayoutAll,
 }
 
@@ -491,3 +494,10 @@ pub fn enable_mouse_passthrough<Message>(id: Id) -> Task<Message> {
 pub fn disable_mouse_passthrough<Message>(id: Id) -> Task<Message> {
     task::effect(crate::Action::Window(Action::DisableMousePassthrough(id)))
 }
+
+/// Get the logical dimensions of the monitor containing the window with the given [`Id`].
+pub fn monitor_size(id: Id) -> Task<Option<Size>> {
+    task::oneshot(move |channel| {
+        crate::Action::Window(Action::GetMonitorSize(id, channel))
+    })
+}
diff --git a/winit/src/lib.rs b/winit/src/lib.rs
index d06fa6e2..1e6394e4 100644
--- a/winit/src/lib.rs
+++ b/winit/src/lib.rs
@@ -1631,7 +1631,7 @@ fn run_action<'a, P, C>(
                     let _ = channel.send(core::window::Screenshot::new(
                         bytes,
                         window.state.physical_size(),
-                        window.state.viewport().scale_factor(),
+                        window.state.scale_factor(),
                     ));
                 }
             }
@@ -1645,6 +1645,18 @@ fn run_action<'a, P, C>(
                     let _ = window.raw.set_cursor_hittest(true);
                 }
             }
+            window::Action::GetMonitorSize(id, channel) => {
+                if let Some(window) = window_manager.get(id) {
+                    let size = window.raw.current_monitor().map(|monitor| {
+                        let scale = window.state.scale_factor();
+                        let size = monitor.size().to_logical(f64::from(scale));
+
+                        Size::new(size.width, size.height)
+                    });
+
+                    let _ = channel.send(size);
+                }
+            }
             window::Action::RedrawAll => {
                 for (_id, window) in window_manager.iter_mut() {
                     window.raw.request_redraw();