Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Z/src/nglapplication/nglapplication.cpp

@@ -0,0 +1,31 @@
+
+
+
+#include "nglapplication.h"
+#include "ngl_signal_handler.inc"
+
+
+NGLApplication::NGLApplication(int &argc, char **argv)
+  : QApplication(argc, argv)
+{
+  
+  signal(SIGTERM, &signalHandler);
+#ifdef Q_OS_WIN
+  installNativeEventFilter(new MyEventFilter);
+#endif
+}
+
+
+bool NGLApplication::notify(QObject *o, QEvent *e)
+{
+  bool bRet = false;
+  try
+  {
+    bRet = QApplication::notify(o, e);
+  }
+  catch (const std::exception &e)
+  {
+    fprintf(stderr, "exception %s\n", e.what());
+  }
+  return bRet;
+}