Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Lts/Common/LtsMultiMonitor/lts_dummy_widget.cpp

@@ -0,0 +1,44 @@
+#include "lts_dummy_widget.h"
+
+#include <LtsUtilsGui/LtsUtilsGuiDds/dds_vector_to_pixmap.h>
+
+#include <QIcon>
+
+#include <QEvent>
+#include <QDebug>
+
+
+namespace LtsMultiMonitor
+{
+
+FullscreenVideoDummyWidget::FullscreenVideoDummyWidget()
+{
+  setWindowIcon(LtsUtils::iconFromSvg(QStringLiteral(":/style/mobile_video.svg")));
+  setWindowTitle(tr("Fullscreen Video Helper"));
+
+
+
+
+}
+
+
+void FullscreenVideoDummyWidget::hideVideo()
+{
+  qWarning() << "FullscreenVideoDummyWidget::hideVideo()";
+  emit signalHideVideo();
+}
+
+void FullscreenVideoDummyWidget::showVideo()
+{
+  emit signalShowVideo();
+}
+
+
+bool FullscreenVideoDummyWidget::event(QEvent *event)
+{
+  if (event->type() == QEvent::Type::Show)
+    assert(false);
+  return QWidget::event(event);
+}
+
+}