Fix: winuser | DestroyWindow (#230)

* winuser | DestroyWindow

* rustfmt pass

examples/drop.rs

@@ -0,0 +1,30 @@
+use minifb::{Key, ScaleMode, Window, WindowOptions};
+use std::thread;
+use std::time::{Duration, Instant};
+
+const WIDTH: usize = 640 / 2;
+const HEIGHT: usize = 360 / 2;
+
+fn show_window() {
+    let mut window = Window::new(
+        "Drop Test - Window will close after 2 seconds.",
+        WIDTH,
+        HEIGHT,
+        WindowOptions::default(),
+    )
+    .expect("Unable to create window");
+
+    let now = Instant::now();
+
+    while window.is_open() && now.elapsed().as_secs() < 2 {
+        window.update();
+    }
+}
+
+fn main() {
+    println!("Showing Window");
+    show_window();
+    println!("Dropped");
+    thread::sleep(Duration::from_millis(2000));
+    println!("Exiting");
+}

src/os/windows/mod.rs

@@ -1272,7 +1272,7 @@ impl Drop for Window {
             }
 
             if self.window.is_some() {
-                winuser::CloseWindow(self.window.unwrap());
+                winuser::DestroyWindow(self.window.unwrap());
             }
         }
     }