--- a/dwtestoo.cpp	Thu Dec 22 13:57:38 2022 +0000
+++ b/dwtestoo.cpp	Thu Dec 22 13:59:46 2022 +0000
@@ -14,14 +14,30 @@
      int OnConfigure(int width, int height) override { return FALSE; }
 };
 
+#ifndef DW_CPP11
+int button_clicked()
+{
+    app->MessageBox("Button", DW_MB_OK | DW_MB_WARNING, "Clicked!"); 
+    return TRUE; 
+}
+#endif
+
 int dwmain(int argc, char* argv[]) 
 {
     DW::App *app = DW::App::Init(argc, argv, "org.dbsoft.dwindows.dwtestoo");
     MyWindow *window = new MyWindow();
-    DW::Text *text = new DW::Text("Test window");
+    DW::Button *button = new DW::Button("Test window");
     
-    window->PackStart(text, DW_SIZE_AUTO, DW_SIZE_AUTO, TRUE, TRUE, 0);
-    text->SetStyle(DW_DT_CENTER | DW_DT_VCENTER, DW_DT_CENTER | DW_DT_VCENTER);
+    window->PackStart(button, DW_SIZE_AUTO, DW_SIZE_AUTO, TRUE, TRUE, 0);
+#ifdef DW_CPP11
+    button->ConnectClicked([app] () -> int 
+        { 
+            app->MessageBox("Button", DW_MB_OK | DW_MB_WARNING, "Clicked!"); 
+            return TRUE; 
+        });
+#else
+    button ->ConnectClicked(&button_clicked);
+#endif
     window->Show();
 
     app->Main();