Fixed focus for Win+D window restoration.

README.md

@@ -208,6 +208,8 @@ See the [GLFW documentation](http://www.glfw.org/docs/latest/).
 
 ## Changelog
 
+ - [Win32] Bugfix: Restoring windows using the Win+D hot key did not trigger the
+                   focus callback
  - [Win32] Bugfix: The disabled cursor mode clip rectangle was updated for
                    unfocused windows
  - [Cocoa] Bugfix: The `GLFW_KEY_GRAVE_ACCENT` and `GLFW_KEY_WORLD_1` keys had

src/win32_window.c

@@ -388,10 +388,21 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
 
             if (focused && iconified)
             {
-                // This is a workaround for window iconification using the
-                // taskbar leading to windows being told they're focused and
-                // iconified and then never told they're defocused
-                focused = FALSE;
+                if (window->iconified && _glfw.focusedWindow != window)
+                {
+                    // This is a workaround for window restoration using the
+                    // Win+D hot key leading to windows being told they're
+                    // focused and iconified and then never told they're
+                    // restored
+                    iconified = FALSE;
+                }
+                else
+                {
+                    // This is a workaround for window iconification using the
+                    // taskbar leading to windows being told they're focused and
+                    // iconified and then never told they're defocused
+                    focused = FALSE;
+                }
             }
 
             if (!focused && _glfw.focusedWindow == window)