diff --git a/examples/Win32Demo/widget.cpp b/examples/Win32Demo/widget.cpp
index 1d3d491..d3b5859 100644
--- a/examples/Win32Demo/widget.cpp
+++ b/examples/Win32Demo/widget.cpp
@@ -187,25 +187,27 @@ bool Widget::nativeEvent(const QByteArray &eventType, void *message, long *resul
     Q_ASSERT(eventType == "windows_generic_MSG");
     Q_ASSERT(message);
     Q_ASSERT(result);
-    const auto msg = static_cast<LPMSG>(message);
-    const auto getCursorPosition = [](const LPARAM lParam) -> QPoint {
-        return {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
-    };
-    switch (msg->message) {
-    case WM_NCRBUTTONUP: {
-        const QPoint pos = getCursorPosition(msg->lParam);
-        qDebug() << "WM_NCRBUTTONUP -->" << pos;
-        if (WinNativeEventFilter::displaySystemMenu(msg->hwnd, false, pos.x(), pos.y())) {
-            *result = 0;
-            return true;
+    if (ui->customizeTitleBarCB->isChecked()) {
+        const auto msg = static_cast<LPMSG>(message);
+        const auto getCursorPosition = [](const LPARAM lParam) -> QPoint {
+            return {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
+        };
+        switch (msg->message) {
+        case WM_NCRBUTTONUP: {
+            const QPoint pos = getCursorPosition(msg->lParam);
+            qDebug() << "WM_NCRBUTTONUP -->" << pos;
+            if (WinNativeEventFilter::displaySystemMenu(msg->hwnd, false, pos.x(), pos.y())) {
+                *result = 0;
+                return true;
+            }
+            break;
+        }
+        case WM_RBUTTONUP:
+            qDebug() << "WM_RBUTTONUP -->" << getCursorPosition(msg->lParam);
+            break;
+        default:
+            break;
         }
-        break;
-    }
-    case WM_RBUTTONUP:
-        qDebug() << "WM_RBUTTONUP -->" << getCursorPosition(msg->lParam);
-        break;
-    default:
-        break;
     }
     return QWidget::nativeEvent(eventType, message, result);
 }