Make sure the minimize button fits in the example

crates/eframe/src/epi.rs

@@ -789,6 +789,12 @@ impl Frame {
         }
     }
 
+    /// Minimize or un-minimize window
+    #[cfg(not(target_arch = "wasm32"))]
+    pub fn set_minimized(&mut self, minimized: bool) {
+        self.output.minimized = Some(minimized);
+    }
+
     /// for integrations only: call once per frame
     pub(crate) fn take_app_output(&mut self) -> backend::AppOutput {
         std::mem::take(&mut self.output)
@@ -1002,5 +1008,9 @@ pub(crate) mod backend {
         /// Set to some bool to tell the window always on top.
         #[cfg(not(target_arch = "wasm32"))]
         pub always_on_top: Option<bool>,
+
+        /// Set to some bool to change window minimization
+        #[cfg(not(target_arch = "wasm32"))]
+        pub minimized: Option<bool>,
     }
 }

crates/eframe/src/native/epi_integration.rs

@@ -180,6 +180,7 @@ pub fn handle_app_output(
         window_pos,
         visible: _, // handled in post_present
         always_on_top,
+        minimized,
     } = app_output;
 
     if let Some(decorated) = decorated {
@@ -218,6 +219,10 @@ pub fn handle_app_output(
     if let Some(always_on_top) = always_on_top {
         window.set_always_on_top(always_on_top);
     }
+
+    if let Some(minimized) = minimized {
+        window.set_minimized(minimized);
+    }
 }
 
 // ----------------------------------------------------------------------------

examples/custom_window_frame/src/main.rs

@@ -10,8 +10,8 @@ fn main() -> Result<(), eframe::Error> {
         decorated: false,
         // To have rounded corners we need transparency:
         transparent: true,
-        min_window_size: Some(egui::vec2(320.0, 100.0)),
-        initial_window_size: Some(egui::vec2(320.0, 240.0)),
+        min_window_size: Some(egui::vec2(350.0, 100.0)),
+        initial_window_size: Some(egui::vec2(350.0, 240.0)),
         ..Default::default()
     };
     eframe::run_native(
@@ -84,15 +84,6 @@ fn custom_window_frame(
                 Stroke::new(1.0, text_color),
             );
 
-            // Add the close button:
-            let close_response = ui.put(
-                Rect::from_min_size(rect.left_top(), Vec2::splat(height)),
-                Button::new(RichText::new("❌").size(height - 4.0)).frame(false),
-            );
-            if close_response.clicked() {
-                frame.close();
-            }
-
             // Interact with the title bar (drag to move window):
             let title_bar_rect = {
                 let mut rect = rect;
@@ -105,6 +96,26 @@ fn custom_window_frame(
                 frame.drag_window();
             }
 
+            // Add the close button:
+            let close_response = ui.put(
+                Rect::from_min_size(rect.left_top(), Vec2::splat(height)),
+                Button::new(RichText::new("❌").size(height - 4.0)).frame(false),
+            );
+            if close_response.clicked() {
+                frame.close();
+            }
+
+            let minimized_response = ui.put(
+                Rect::from_min_size(
+                    rect.left_top() + vec2((height - 4.0) * 1.0, 0.0),
+                    Vec2::splat(height),
+                ),
+                Button::new(RichText::new("🗕").size(height - 4.0)).frame(false),
+            );
+            if minimized_response.clicked() {
+                frame.set_minimized(true);
+            }
+
             // Add the contents:
             let content_rect = {
                 let mut rect = rect;