1 files changed, 3 insertions, 0 deletions
diff --git a/demos/qtdemo/colors.cpp b/demos/qtdemo/colors.cpp
index 18343cb..41bbfb3 100644
--- a/demos/qtdemo/colors.cpp
+++ b/demos/qtdemo/colors.cpp
@@ -278,6 +278,9 @@ void Colors::parseArgs(int argc, char *argv[])
                                  + "[-low] [-ticker-letters<int>] [-ticker-speed<float>] [-no-ticker-morph] "
                                  + "[-ticker-morph-speed<float>] [-ticker-text<string>]");
             exit(0);
+        } else{
+            QMessageBox::warning(0, "QtDemo", QString("Unrecognized argument:\n") + s);
+            exit(0);
         }
     }