--- a/src/RelpipeChartMainWindow.cpp	Sun Sep 30 01:40:29 2018 +0200
+++ b/src/RelpipeChartMainWindow.cpp	Sun Sep 30 18:34:34 2018 +0200
@@ -16,38 +16,22 @@
 
 	int optionsIndex = tabs->addTab(new QPushButton("here will be options", tabs), "Options");
 	tabs->setTabIcon(optionsIndex, QIcon::fromTheme("configure"));
-
-	statusBar()->addWidget(new QLabel("Loading relations...", widget.statusbar));
-
-
-	// TODO: remove; just demo
-	QPushButton* emitButton = new QPushButton("emit", widget.statusbar);
-	statusBar()->addWidget(emitButton);
-	QObject::connect(
-			emitButton, &QPushButton::pressed,
-			this, &RelpipeChartMainWindow::slot123
-			);
-	// ---
-
+	statusBar()->addWidget(status);
 	setCentralWidget(tabs);
-
 }
 
 RelpipeChartMainWindow::~RelpipeChartMainWindow() {
 }
 
-void RelpipeChartMainWindow::slot123() {
-	// TODO: remove; just demo
-	statusBar()->addWidget(new QPushButton("slot123", widget.statusbar));
-}
-
 void RelpipeChartMainWindow::startRelation(string_t name, std::vector<AttributeMetadata> attributes) {
+	setStatusMessage(L"Reading relation: " + name);
 	attributeCounter = 0;
 	QSplitter* splitter = new QSplitter(Qt::Orientation::Vertical, tabs);
 
 	currentTable = new QTableWidget(0, attributes.size(), splitter);
 	QStringList headers;
 	for (AttributeMetadata a : attributes) headers << QString::fromWCharArray(a.getAttributeName().c_str());
+	// for (AttributeMetadata a : attributes) headers << (QString::fromWCharArray(a.getAttributeName().c_str()) + " (" + QString::fromWCharArray(a.getTypeName().c_str()) + ")" );
 	currentTable->setHorizontalHeaderLabels(headers);
 	currentTable->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeMode::ResizeToContents);
 
@@ -68,7 +52,10 @@
 	attributeCounter++;
 }
 
+void RelpipeChartMainWindow::setStatusMessage(string_t message) {
+	status->setText(QString::fromWCharArray(message.c_str()));
+}
+
 void RelpipeChartMainWindow::endOfPipe() {
-	// TODO: just display a message
-	statusBar()->addWidget(new QPushButton("endOfPipe", widget.statusbar));
+	setStatusMessage(L"Reading successfully finished.");
 }

--- a/src/RelpipeChartMainWindow.h	Sun Sep 30 01:40:29 2018 +0200
+++ b/src/RelpipeChartMainWindow.h	Sun Sep 30 18:34:34 2018 +0200
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <QTableWidget>
+#include <QLabel>
 
 #include "ui_RelpipeChartMainWindow.h"
 
@@ -20,13 +21,12 @@
 	virtual void startRelation(string_t name, std::vector<AttributeMetadata> attributes) override;
 	virtual void attribute(const string_t& value) override;
 	virtual void endOfPipe() override;
+public slots:
+	void setStatusMessage(string_t message);
 private:
 	Ui::RelpipeChartMainWindow widget;
 	QTabWidget* tabs = new QTabWidget(this);
 	QTableWidget* currentTable;
+	QLabel* status = new QLabel();
 	integer_t attributeCounter;
-public slots:
-	void slot123();
-signals:
-	void signal123();
 };

--- a/src/relpipe-out-chart.cpp	Sun Sep 30 01:40:29 2018 +0200
+++ b/src/relpipe-out-chart.cpp	Sun Sep 30 18:34:34 2018 +0200
@@ -43,15 +43,9 @@
 	QApplication app(argc, argv);
 
 	std::shared_ptr<RelationalReader> reader(Factory::create(std::cin));
-
-
 	int resultCode = CLI::EXIT_CODE_UNEXPECTED_ERROR;
 
 	RelpipeChartMainWindow window;
-
-	// TODO: remove; just demo
-	QObject::connect(&window, &RelpipeChartMainWindow::signal123, &window, &RelpipeChartMainWindow::slot123);
-
 	window.show();
 
 	QtRelationalReaderStringHadler handler(&app, &window);
@@ -62,10 +56,13 @@
 	t.start();
 	// ---
 
-	// window.signal123();
+	int qtResultCode = app.exec();
 
-	app.exec();
-	//return app.exec();
+	if (qtResultCode == 0) {
+		resultCode = CLI::EXIT_CODE_SUCCESS;
+	} else {
+		// TODO: report and log Qt errors if any
+	}
 
 	if (t.isRunning()) {
 		std::wcerr << L"Background RelationalReader thread is still running → terminate()" << std::endl;