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

@@ -387,12 +387,23 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
             BOOL iconified = HIWORD(wParam) ? TRUE : FALSE;
 
             if (focused && iconified)
+            {
+                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)
             {