diff --git a/app/src/main.c b/app/src/main.c
index 1c2e57d..9279e65 100644
--- a/app/src/main.c
+++ b/app/src/main.c
@@ -1,18 +1,48 @@
+/*
+ * This file is part of GtkGraphView.
+ *
+* Foobar is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+* GtkGraphView 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 GtkGraphView. If not, see <https://www.gnu.org/licenses/>.
+*/
+
 #include <stdio.h>
 #include <gtk/gtk.h>
 #include <gtk-graph-view.h>
 
+static gboolean main_window_delete_event(GtkWidget *window, gpointer user)
+{
+	(void)user;
+
+	gtk_widget_destroy(window);
+	gtk_main_quit();
+
+	return FALSE;
+}
+
 int main(int argc, char **argv)
 {
 	GtkWidget *main_window;
-
-	printf("Hello World!\n");
+	GtkWidget *graph_view;
 
 	gtk_init(&argc, &argv);
 
 	main_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
-	gtk_widget_show(main_window);
+	gtk_window_set_default_size(GTK_WINDOW(main_window), 800, 800);
+	g_signal_connect(main_window, "delete-event", G_CALLBACK(main_window_delete_event), NULL);
 
+	graph_view = gtk_graph_view_new();
+	gtk_container_add(GTK_CONTAINER(main_window), graph_view);
+
+	gtk_widget_show_all(main_window);
 	gtk_main();
 
 	return 0;
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 7c42e86..c208d70 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -4,12 +4,14 @@ project(gtkgraphview LANGUAGES C)
 find_package(PkgConfig REQUIRED)
 pkg_search_module(GLIB REQUIRED glib-2.0)
 pkg_check_modules(GTK3 REQUIRED gtk+-3.0)
+pkg_check_modules(EPOXY REQUIRED epoxy)
 
 add_compile_options(-Wall -Wextra -Wold-style-declaration -Wuninitialized -Wmaybe-uninitialized -Wunused-parameter)
 aux_source_directory("src" SRC_DIR)
 
 add_library(${PROJECT_NAME} SHARED ${SRC_DIR})
 target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
-target_link_libraries(${PROJECT_NAME} PUBLIC ${GLIB_LDFLAGS} ${GTK3_LDFLAGS})
-target_link_directories(${PROJECT_NAME} PUBLIC ${GLIB_LINK_DIRS} ${GTK3_LINK_DIRS})
+target_include_directories(${PROJECT_NAME} PRIVATE ${EPOXY_INCLUDE_DIRS})
+target_link_libraries(${PROJECT_NAME} PUBLIC ${GLIB_LDFLAGS} ${GTK3_LDFLAGS} ${EPOXY_LDFLAGS})
+target_link_directories(${PROJECT_NAME} PUBLIC ${GLIB_LINK_DIRS} ${GTK3_LINK_DIRS} ${EPOXY_LINK_DIRS})
 target_include_directories(${PROJECT_NAME} PUBLIC ${GLIB_INCLUDE_DIRS} ${GTK3_INCLUDE_DIRS})
diff --git a/lib/include/gtk-graph-view.h b/lib/include/gtk-graph-view.h
index e69de29..703cad5 100644
--- a/lib/include/gtk-graph-view.h
+++ b/lib/include/gtk-graph-view.h
@@ -0,0 +1,49 @@
+/*
+ * This file is part of GtkGraphView.
+ *
+ * Foobar is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * GtkGraphView 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 GtkGraphView. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * @file gtk-graph-view.h
+ * @brief header file for the GtkGraphView Widget
+ * @author Mario Hüttel <mario.huettel@gmx.net>
+ */
+
+/**
+ * @addtogroup GtkGraphView
+ * @{
+ */
+
+#ifndef __GTK_GRAPH_VIEW_H__
+#define __GTK_GRAPH_VIEW_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_GRAPH_VIEW (gtk_graph_view_get_type())
+
+G_DECLARE_FINAL_TYPE(GtkGraphView, gtk_graph_view, GTK, GRAPH_VIEW, GtkGLArea)
+
+/**
+ * @brief Instanciate new GtkGraphView object
+ * @return created object
+ */
+GtkWidget *gtk_graph_view_new();
+
+G_END_DECLS
+
+#endif /* __GTK_GRAPH_VIEW_H__ */
+
+/** @} */
diff --git a/lib/src/gtk-graph-view.c b/lib/src/gtk-graph-view.c
index fff58e5..7f9a766 100644
--- a/lib/src/gtk-graph-view.c
+++ b/lib/src/gtk-graph-view.c
@@ -1,6 +1,56 @@
-#include <gtk-graph-view.h>
+/*
+ * This file is part of GtkGraphView.
+ *
+* Foobar is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+* GtkGraphView 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 GtkGraphView. If not, see <https://www.gnu.org/licenses/>.
+*/
 
-int test()
+#include <gtk-graph-view.h>
+#include <epoxy/gl.h>
+
+struct _GtkGraphView {
+	GtkGLArea parent;
+};
+
+typedef struct {
+	int i; /**< @note This is just a dummy. Remove! */
+} GtkGraphViewPrivate;
+
+G_DEFINE_TYPE_WITH_PRIVATE(GtkGraphView, gtk_graph_view, GTK_TYPE_GL_AREA)
+
+/**
+ * @brief Init class structure of GtkGraphView
+ * @param klass Class structure
+ */
+static void gtk_graph_view_class_init(GtkGraphViewClass *klass)
 {
-	return 1;
+	(void)klass;
+
+	return;
+}
+
+/**
+ * @brief Init a new GtkGraphView GObject
+ * @param obj Object to initialize
+ */
+static void gtk_graph_view_init(GtkGraphView *obj)
+{
+	GtkGraphViewPrivate *priv;
+
+	priv = gtk_graph_view_get_instance_private(obj);
+	priv->i = 0;
+}
+
+GtkWidget *gtk_graph_view_new()
+{
+	return gtk_widget_new(GTK_TYPE_GRAPH_VIEW, NULL);
 }