Window::set_minimized (#985) (#990)

* Expose set_minimized. Implement for macOS (#985)

* Implement set_minimized for Wayland (#985)

Co-Authored-By: Victor Berger <vberger@users.noreply.github.com>

* Implement set_minimized for Windows (#985)

* Remove debug logs (#985)

* Implement Window::set_minimized for X11

* Remove extra param from set_window_flags call

* Cargo fmt

* Add example of usage

* Update changelog

* Update feature matrix

* Cargo fmt

* Update example to remove unnecessary event var

* Stop setting window styles when minimizing (#985)

* Add stub for WASM (#985)

Co-authored-by: Victor Berger <vberger@users.noreply.github.com>
Co-authored-by: Murarth <murarth@gmail.com>
Co-authored-by: Freya Gentz <zegentzy@protonmail.com>
Co-authored-by: Osspial <osspial@gmail.com>

examples/minimize.rs

@@ -0,0 +1,35 @@
+extern crate winit;
+
+use winit::event::{Event, VirtualKeyCode, WindowEvent};
+use winit::event_loop::{ControlFlow, EventLoop};
+use winit::window::WindowBuilder;
+
+fn main() {
+    let event_loop = EventLoop::new();
+
+    let window = WindowBuilder::new()
+        .with_title("A fantastic window!")
+        .build(&event_loop)
+        .unwrap();
+
+    event_loop.run(move |event, _, control_flow| match event {
+        Event::WindowEvent {
+            event: WindowEvent::CloseRequested,
+            ..
+        } => *control_flow = ControlFlow::Exit,
+
+        // Keyboard input event to handle minimize via a hotkey
+        Event::WindowEvent {
+            event: WindowEvent::KeyboardInput { input, .. },
+            window_id,
+        } => {
+            if window_id == window.id() {
+                // Pressing the 'M' key will minimize the window
+                if input.virtual_keycode == Some(VirtualKeyCode::M) {
+                    window.set_minimized(true);
+                }
+            }
+        }
+        _ => *control_flow = ControlFlow::Wait,
+    });
+}