diff -r 000000000000 -r f28025ce355d src/relpipe-out-gui.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/relpipe-out-gui.cpp	Thu Jun 06 13:21:43 2019 +0200
@@ -0,0 +1,44 @@
+/**
+ * Relational pipes
+ * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <cstdlib>
+#include <unistd.h>
+#include <memory>
+
+#include <gtkmm.h>
+
+#include <relpipe/cli/CLI.h>
+#include <relpipe/cli/RelpipeCLIException.h>
+#include <relpipe/reader/Factory.h>
+#include <relpipe/reader/RelationalReader.h>
+#include <relpipe/reader/RelpipeReaderException.h>
+
+using namespace relpipe::cli;
+using namespace relpipe::reader;
+
+int main(int argc, char** argv) {
+	setlocale(LC_ALL, "");
+	CLI::untieStdIO();
+	CLI cli(argc, argv);
+
+	auto app = Gtk::Application::create(argc, argv, "org.gtkmm.examples.base");
+	Gtk::Window window;
+	window.set_default_size(640, 480);
+	window.set_title("relpipe-out-gui.gtk");
+
+	return app->run(window);
+}