diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2bf47b4..b7704f5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.1.2
+
+- `WindowBase`:
+  - `destroy`: returns `bool` and warns failed calls.
+
 ## 1.1.1
 
 - `WindowClassColors`:
diff --git a/lib/src/win32_dialog.dart b/lib/src/win32_dialog.dart
index 567626a..e231ada 100644
--- a/lib/src/win32_dialog.dart
+++ b/lib/src/win32_dialog.dart
@@ -309,9 +309,7 @@ class Dialog<R> extends WindowBase<Dialog> {
     final timeout = this.timeout;
     if (timeout == null) return;
 
-    _timeoutTimer = Timer(timeout, () {
-      _notifyTimeout();
-    });
+    _timeoutTimer = Timer(timeout, _notifyTimeout);
   }
 
   bool _timeoutTriggered = false;
diff --git a/lib/src/win32_gui_base.dart b/lib/src/win32_gui_base.dart
index 4405e83..421653c 100644
--- a/lib/src/win32_gui_base.dart
+++ b/lib/src/win32_gui_base.dart
@@ -850,10 +850,19 @@ abstract class WindowBase<W extends WindowBase<W>> {
 
   /// Destroys this [Window].
   /// - Calls Win32 [DestroyWindow].
-  void destroy() {
+  bool destroy() {
     final hwnd = this.hwnd;
 
-    DestroyWindow(hwnd);
+    var r = DestroyWindow(hwnd);
+    if (r == 0) {
+      final errorCode = GetLastError();
+      _logWindow.warning(
+          "Error closing `Window`> errorCode: $errorCode > $hwnd -> $this");
+
+      return false;
+    }
+
+    return true;
   }
 
   /// Shows a message dialog.
diff --git a/pubspec.yaml b/pubspec.yaml
index 6f2ecfe..08bd4ed 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: win32_gui
 description: Win32 API GUI in Object-Oriented style with some helpers. Uses package `win32` and `dart:ffi`.
-version: 1.1.1
+version: 1.1.2
 repository: https://github.com/gmpassos/win32_gui
 
 screenshots: