On Windows, fix bug where RedrawRequested would only get emitted every other iteration of the event loop (#1366)

* Fix bug causing RedrawRequested events to only get emitted every other iteration of the event loop.

* Initialize simple_logger in examples.

This PR's primary bug was discovered because a friend of mine reported
that winit was emitting concerning log messages, which I'd never seen
since none of the examples print out the log messages. This addresses
that, to hopefully reduce the chance of bugs going unnoticed in the
future.

* Add changelog entry

* Format

examples/cursor.rs

@@ -5,6 +5,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let window = WindowBuilder::new().build(&event_loop).unwrap();

examples/cursor_grab.rs

@@ -5,6 +5,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let window = WindowBuilder::new()

examples/custom_events.rs

@@ -11,6 +11,7 @@ fn main() {
         Timer,
     }
 
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::<CustomEvent>::with_user_event();
 
     let _window = WindowBuilder::new()

examples/fullscreen.rs

@@ -5,6 +5,7 @@ use winit::monitor::{MonitorHandle, VideoMode};
 use winit::window::{Fullscreen, WindowBuilder};
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     print!("Please choose the fullscreen mode: (1) exclusive, (2) borderless: ");

examples/handling_close.rs

@@ -5,6 +5,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let _window = WindowBuilder::new()

examples/min_max_size.rs

@@ -6,6 +6,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let window = WindowBuilder::new().build(&event_loop).unwrap();

examples/minimize.rs

@@ -5,6 +5,7 @@ use winit::event_loop::{ControlFlow, EventLoop};
 use winit::window::WindowBuilder;
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let window = WindowBuilder::new()

examples/monitor_list.rs

@@ -1,6 +1,7 @@
 use winit::{event_loop::EventLoop, window::WindowBuilder};
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
     let window = WindowBuilder::new().build(&event_loop).unwrap();
 

examples/multithreaded.rs

@@ -1,7 +1,5 @@
 #[cfg(not(target_arch = "wasm32"))]
 fn main() {
-    extern crate env_logger;
-
     use std::{collections::HashMap, sync::mpsc, thread, time::Duration};
 
     use winit::{
@@ -14,7 +12,7 @@ fn main() {
     const WINDOW_COUNT: usize = 3;
     const WINDOW_SIZE: PhysicalSize<u32> = PhysicalSize::new(600, 400);
 
-    env_logger::init();
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
     let mut window_senders = HashMap::with_capacity(WINDOW_COUNT);
     for _ in 0..WINDOW_COUNT {

examples/multiwindow.rs

@@ -6,6 +6,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let mut windows = HashMap::new();

examples/request_redraw.rs

@@ -5,6 +5,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let window = WindowBuilder::new()

examples/resizable.rs

@@ -6,6 +6,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let mut resizable = false;

examples/timer.rs

@@ -7,6 +7,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let _window = WindowBuilder::new()

examples/transparent.rs

@@ -5,6 +5,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let window = WindowBuilder::new()

examples/video_modes.rs

@@ -1,6 +1,7 @@
 use winit::event_loop::EventLoop;
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
     let monitor = event_loop.primary_monitor();
 

examples/window.rs

@@ -5,6 +5,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let window = WindowBuilder::new()

examples/window_debug.rs

@@ -8,6 +8,7 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
     let event_loop = EventLoop::new();
 
     let window = WindowBuilder::new()

examples/window_icon.rs

@@ -7,6 +7,8 @@ use winit::{
 };
 
 fn main() {
+    simple_logger::init().unwrap();
+
     // You'll have to choose an icon size at your own discretion. On X11, the desired size varies
     // by WM, and on Windows, you still have to account for screen scaling. Here we use 32px,
     // since it seems to work well enough in most cases. Be careful about going too high, or

examples/window_run_return.rs

@@ -18,6 +18,7 @@ fn main() {
     };
     let mut event_loop = EventLoop::new();
 
+    simple_logger::init().unwrap();
     let _window = WindowBuilder::new()
         .with_title("A fantastic window!")
         .build(&event_loop)