new file mode 100644
--- /dev/null
+++ b/volume_io/Testing/test_graphics.c
@@ -0,0 +1,40 @@
+
+#include  <def_graphics.h>
+
+main()
+{
+    Status         status;
+    window_struct  *window;
+    lines_struct   lines;
+    Point          point;
+    Status         initialize_lines();
+    Status         begin_adding_points_to_line();
+    Status         add_point_to_line();
+    Status         delete_lines();
+
+    status = G_create_window( "Test Window", -1, -1, -1, -1, &window );
+
+    G_set_view_type( window, MODEL_VIEW );
+
+    status = initialize_lines( &lines, make_Colour(255,255,128) );
+
+    status = begin_adding_points_to_line( &lines );
+
+    fill_Point( point, -0.2, -0.2, 0.0 );
+    status = add_point_to_line( &lines, &point );
+
+    fill_Point( point, 0.2, 0.2, 0.0 );
+    status = add_point_to_line( &lines, &point );
+
+    G_draw_lines( window, &lines );
+    G_update_window( window );
+
+    (void) printf( "Hit return: " );
+    (void) getchar();
+
+    status = delete_lines( &lines );
+
+    status = G_delete_window( window );
+
+    return( status != OK );
+}