diff --git a/Cargo.toml b/Cargo.toml
index 239937a..47c8abb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,9 @@ build = "build.rs"
 [lib]
 name = "imgui"
 
+[features]
+default = ["glium"]
+
 [dependencies]
 bitflags = "0.3"
 libc = "0.1"
@@ -22,3 +25,11 @@ optional = true
 
 [build-dependencies]
 gcc = "0.3"
+
+[dev-dependencies]
+time = "0.1"
+
+[dev-dependencies.glium]
+version = "0.8"
+features = ["glutin"]
+default-features = false
diff --git a/examples/test_window/src/main.rs b/examples/support/mod.rs
similarity index 88%
rename from examples/test_window/src/main.rs
rename to examples/support/mod.rs
index 31ed576..6ec192f 100644
--- a/examples/test_window/src/main.rs
+++ b/examples/support/mod.rs
@@ -1,18 +1,11 @@
-#[macro_use]
-extern crate glium;
-extern crate imgui;
-extern crate time;
-
-use glium::DisplayBuild;
-use glium::Surface;
+use glium::{DisplayBuild, Surface};
 use glium::glutin;
 use glium::glutin::{ElementState, Event, MouseButton, VirtualKeyCode};
-use imgui::ImGui;
+use imgui::{ImGui, Frame};
 use imgui::glium_renderer::Renderer;
 use time::SteadyTime;
 
-fn main() {
-
+pub fn main_with_frame<'a, F: Fn(&Frame<'a>)>(f: F) {
     let display = glutin::WindowBuilder::new()
         .build_glium()
         .unwrap();
@@ -37,8 +30,8 @@ fn main() {
         target.clear_color(1.0, 1.0, 1.0, 1.0);
 
         let (width, height) = target.get_dimensions();
-        let mut frame = imgui.frame(width, height, delta_f);
-        frame.show_test_window();
+        let frame = imgui.frame(width, height, delta_f);
+        f(&frame);
         renderer.render(&mut target, frame).unwrap();
 
         target.finish().unwrap();
diff --git a/examples/test_window.rs b/examples/test_window.rs
new file mode 100644
index 0000000..28a51e8
--- /dev/null
+++ b/examples/test_window.rs
@@ -0,0 +1,12 @@
+#[macro_use]
+extern crate glium;
+extern crate imgui;
+extern crate time;
+
+mod support;
+
+fn main() {
+    support::main_with_frame(|frame| {
+        frame.show_test_window();
+    });
+}
diff --git a/examples/test_window/Cargo.toml b/examples/test_window/Cargo.toml
deleted file mode 100644
index 243d87d..0000000
--- a/examples/test_window/Cargo.toml
+++ /dev/null
@@ -1,12 +0,0 @@
-[package]
-name = "test_window"
-version = "0.0.0"
-authors = ["Joonas Javanainen <joonas.javanainen@gmail.com>"]
-
-[dependencies]
-glium = "0.8"
-time = "0.1"
-
-[dependencies.imgui-rs]
-path = "../../"
-features = ["glium"]