diff --git a/Cargo.lock b/Cargo.lock
index 703c74f..38c7960 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,31 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "atk"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "444daefa55f229af145ea58d77efd23725024ee1f6f3102743709aa6b18c663e"
+dependencies = [
+ "atk-sys",
+ "bitflags",
+ "glib",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+]
+
+[[package]]
+name = "atk-sys"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e552c1776737a4c80110d06b36d099f47c727335f9aaa5d942a72b6863a8ec6f"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "bitflags"
 version = "1.2.1"
@@ -24,6 +50,37 @@ version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
 
+[[package]]
+name = "cairo-rs"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "157049ba9618aa3a61c39d5d785102c04d3b1f40632a706c621a9aedc21e6084"
+dependencies = [
+ "bitflags",
+ "cairo-sys-rs",
+ "glib",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+]
+
+[[package]]
+name = "cairo-sys-rs"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff65ba02cac715be836f63429ab00a767d48336efc5497c5637afb53b4f14d63"
+dependencies = [
+ "glib-sys",
+ "libc",
+ "pkg-config",
+]
+
+[[package]]
+name = "cc"
+version = "1.0.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95e28fa049fda1c330bcf9d723be7663a899c4679724b34c81e9f5a326aab8cd"
+
 [[package]]
 name = "csv"
 version = "1.1.3"
@@ -73,17 +130,264 @@ version = "0.1.0"
 dependencies = [
  "csv",
  "errno",
+ "gdk",
+ "gio",
+ "gtk",
  "input",
  "libc",
  "udev",
 ]
 
+[[package]]
+name = "futures-channel"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0c77d04ce8edd9cb903932b608268b3fffec4163dc053b3b402bf47eac1f1a8"
+dependencies = [
+ "futures-core",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f25592f769825e89b92358db00d26f965761e094951ac44d3663ef25b7ac464a"
+
+[[package]]
+name = "futures-executor"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f674f3e1bcb15b37284a90cedf55afdba482ab061c407a9c0ebbd0f3109741ba"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a638959aa96152c7a4cddf50fcb1e3fede0583b27157c26e67d6f99904090dc6"
+
+[[package]]
+name = "futures-macro"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a5081aa3de1f7542a794a397cde100ed903b0630152d0973479018fd85423a7"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "futures-task"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b0a34e53cf6cdcd0178aa573aed466b646eb3db769570841fda0c7ede375a27"
+
+[[package]]
+name = "futures-util"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22766cf25d64306bedf0384da004d05c9974ab104fcc4528f1236181c18004c5"
+dependencies = [
+ "futures-core",
+ "futures-macro",
+ "futures-task",
+ "pin-utils",
+ "proc-macro-hack",
+ "proc-macro-nested",
+ "slab",
+]
+
 [[package]]
 name = "gcc"
 version = "0.3.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f5f3913fa0bfe7ee1fd8248b6b9f42a5af4b9d65ec2dd2c3c26132b950ecfc2"
 
+[[package]]
+name = "gdk"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbe5e8772fc0865c52460cdd7a59d7d47700f44d9809d1dd00eecceb769a7589"
+dependencies = [
+ "bitflags",
+ "cairo-rs",
+ "cairo-sys-rs",
+ "gdk-pixbuf",
+ "gdk-sys",
+ "gio",
+ "gio-sys",
+ "glib",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pango",
+]
+
+[[package]]
+name = "gdk-pixbuf"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e248220c46b329b097d4b158d2717f8c688f16dd76d0399ace82b3e98062bdd7"
+dependencies = [
+ "gdk-pixbuf-sys",
+ "gio",
+ "gio-sys",
+ "glib",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+]
+
+[[package]]
+name = "gdk-pixbuf-sys"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8991b060a9e9161bafd09bf4a202e6fd404f5b4dd1a08d53a1e84256fb34ab0"
+dependencies = [
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pkg-config",
+]
+
+[[package]]
+name = "gdk-sys"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6adf679e91d1bff0c06860287f80403e7db54c2d2424dce0a470023b56c88fbb"
+dependencies = [
+ "cairo-sys-rs",
+ "gdk-pixbuf-sys",
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pango-sys",
+ "pkg-config",
+]
+
+[[package]]
+name = "gio"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0cd10f9415cce39b53f8024bf39a21f84f8157afa52da53837b102e585a296a5"
+dependencies = [
+ "bitflags",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-util",
+ "gio-sys",
+ "glib",
+ "glib-sys",
+ "gobject-sys",
+ "lazy_static",
+ "libc",
+]
+
+[[package]]
+name = "gio-sys"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fad225242b9eae7ec8a063bb86974aca56885014672375e5775dc0ea3533911"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pkg-config",
+]
+
+[[package]]
+name = "glib"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40fb573a09841b6386ddf15fd4bc6655b4f5b106ca962f57ecaecde32a0061c0"
+dependencies = [
+ "bitflags",
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-task",
+ "futures-util",
+ "glib-sys",
+ "gobject-sys",
+ "lazy_static",
+ "libc",
+]
+
+[[package]]
+name = "glib-sys"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95856f3802f446c05feffa5e24859fe6a183a7cb849c8449afc35c86b1e316e2"
+dependencies = [
+ "libc",
+ "pkg-config",
+]
+
+[[package]]
+name = "gobject-sys"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31d1a804f62034eccf370006ccaef3708a71c31d561fee88564abe71177553d9"
+dependencies = [
+ "glib-sys",
+ "libc",
+ "pkg-config",
+]
+
+[[package]]
+name = "gtk"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87e1e8d70290239c668594002d1b174fcc7d7ef5d26670ee141490ede8facf8f"
+dependencies = [
+ "atk",
+ "bitflags",
+ "cairo-rs",
+ "cairo-sys-rs",
+ "cc",
+ "gdk",
+ "gdk-pixbuf",
+ "gdk-pixbuf-sys",
+ "gdk-sys",
+ "gio",
+ "gio-sys",
+ "glib",
+ "glib-sys",
+ "gobject-sys",
+ "gtk-sys",
+ "lazy_static",
+ "libc",
+ "pango",
+ "pango-sys",
+]
+
+[[package]]
+name = "gtk-sys"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53def660c7b48b00b510c81ef2d2fbd3c570f1527081d8d7947f471513e1a4c1"
+dependencies = [
+ "atk-sys",
+ "cairo-sys-rs",
+ "gdk-pixbuf-sys",
+ "gdk-sys",
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pango-sys",
+ "pkg-config",
+]
+
 [[package]]
 name = "input"
 version = "0.4.1"
@@ -137,12 +441,75 @@ version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3728d817d99e5ac407411fa471ff9800a778d88a24685968b36824eaf4bee400"
 
+[[package]]
+name = "pango"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e9c6b728f1be8edb5f9f981420b651d5ea30bdb9de89f1f1262d0084a020577"
+dependencies = [
+ "bitflags",
+ "glib",
+ "glib-sys",
+ "gobject-sys",
+ "lazy_static",
+ "libc",
+ "pango-sys",
+]
+
+[[package]]
+name = "pango-sys"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b93d84907b3cf0819bff8f13598ba72843bee579d5ebc2502e4b0367b4be7d"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pkg-config",
+]
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0-alpha.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5894c618ce612a3fa23881b152b608bafb8c56cfc22f434a3ba3120b40f7b587"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "05da548ad6865900e60eaba7f589cc0783590a92e940c26953ff81ddbab2d677"
 
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d659fe7c6d27f25e9d80a1a094c223f5246f6a6596453e09d7229bf42750b63"
+
+[[package]]
+name = "proc-macro-nested"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df246d292ff63439fea9bc8c0a270bed0e390d5ebd4db4ba15aba81111b5abe3"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2bdc6c187c65bca4260c9011c9e3132efe4909da44726bad24cf7572ae338d7f"
+dependencies = [
+ "proc-macro2",
+]
+
 [[package]]
 name = "regex-automata"
 version = "0.1.9"
@@ -164,6 +531,23 @@ version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "414115f25f818d7dfccec8ee535d76949ae78584fc4f79a6f45a904bf8ab4449"
 
+[[package]]
+name = "slab"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
+
+[[package]]
+name = "syn"
+version = "1.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0df0eb663f387145cab623dea85b09c2c5b4b0aef44e945d928e682fce71bb03"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
 [[package]]
 name = "udev"
 version = "0.2.0"
@@ -174,6 +558,12 @@ dependencies = [
  "libudev-sys",
 ]
 
+[[package]]
+name = "unicode-xid"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
+
 [[package]]
 name = "winapi"
 version = "0.3.8"
diff --git a/Cargo.toml b/Cargo.toml
index 61359ec..4ac9b01 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,3 +12,16 @@ udev = "0.2"
 libc = "0.2"
 errno = "0.2"
 csv = "1.1.3"
+
+[dependencies.gtk]
+version = "0.8.1"
+features = ["v3_24"]
+
+[dependencies.gio]
+version = ""
+features = ["v2_60"]
+
+[dependencies.gdk]
+version = ""
+features = ["v3_24"]
+
diff --git a/src/bin/gtk_capture.rs b/src/bin/gtk_capture.rs
new file mode 100644
index 0000000..f9408b3
--- /dev/null
+++ b/src/bin/gtk_capture.rs
@@ -0,0 +1,122 @@
+use std::vec::Vec;
+use std::cell::RefCell;
+use std::rc::Rc;
+use gtk::prelude::*;
+use gio::prelude::*;
+
+use gtk::{Application, ApplicationWindow, DrawingArea, Box, Button, HeaderBar};
+
+struct AppState {
+    do_draw: bool,
+    point_buffer: Vec<(f64, f64)>,
+}
+
+fn main() {
+    let application = Application::new(
+        Some("team.acqua.enrico.styluscapture"),
+        Default::default(),
+    ).expect("failed to initialize GTK application");
+
+
+    application.connect_activate(|app| {
+        let app_state = Rc::new(RefCell::new(AppState{
+            do_draw: false,
+            point_buffer: Vec::new(),
+        }));
+
+        let drawing_area = DrawingArea::new();
+        let state_clone_1 = Rc::clone(&app_state);
+        drawing_area.set_size_request(100, 100);
+        drawing_area.connect_draw(move |widget, cr| {
+            let style_context = widget.get_style_context();
+            let wa = widget.get_allocation();
+
+            gtk::render_background(
+                &style_context,
+                &cr,
+                wa.x as f64,
+                wa.y as f64,
+                wa.width as f64,
+                wa.height as f64
+            );
+
+            let state = &*state_clone_1.borrow();
+
+            for pt in &state.point_buffer {
+                cr.set_source_rgb(1.0, 0.0, 0.0);
+                cr.arc(pt.0 - wa.x as f64, pt.1 - wa.y as f64, 3., 0., 2.*std::f64::consts::PI);
+                cr.fill();
+            }
+            println!("{} points drawn", state.point_buffer.len());
+
+            gtk::Inhibit(false)
+        });
+
+        let save_button = Button::new_from_icon_name(Some("document-save-symbolic"), gtk::IconSize::Menu);
+        //save_button.connect_clicked(|_| {
+        //    
+        //});
+        let clear_button = Button::new_from_icon_name(Some("edit-clear-all-symbolic"), gtk::IconSize::Menu);
+
+        let header = HeaderBar::new();
+        header.pack_start(&save_button);
+        header.pack_start(&clear_button);
+
+        let w_box = Box::new(gtk::Orientation::Vertical, 10);
+        w_box.pack_start(&header, false, false, 0);
+        w_box.pack_end(&drawing_area, true, true, 0);
+
+        let window = Rc::new(ApplicationWindow::new(app));
+        window.set_title("Stylus Capture");
+        window.set_default_size(500, 500);
+
+        let state_clone_3 = Rc::clone(&app_state);
+        let win_clone = Rc::clone(&window);
+        clear_button.connect_clicked(move |widget| {
+            state_clone_3.borrow_mut().point_buffer.clear();
+            win_clone.queue_draw();
+        });
+
+        let state_clone_2 = Rc::clone(&app_state);
+        window.connect_event(move |widget, event| {
+            let mut capture_event = false;
+            if event.get_device_tool()
+                .map(|tool| tool.get_tool_type() == gdk::DeviceToolType::Pen) == Some(true) {
+                match event.get_event_type() {
+                    gdk::EventType::ProximityOut => {
+                        std::println!("pen out of proximity");
+                    },
+                    gdk::EventType::ProximityIn => {
+                        std::println!("pen in proximity");
+                    },
+                    gdk::EventType::MotionNotify => {
+                        let state = &mut *state_clone_2.borrow_mut();
+                        if state.do_draw {
+                            state.point_buffer.push(event.get_coords().unwrap());
+                            widget.queue_draw();
+                        }
+                    },
+                    gdk::EventType::ButtonPress | gdk::EventType::ButtonRelease => {
+                        std::println!("evt: {:#?}, tool: {:#?}", event, event.get_device_tool());
+
+                        state_clone_2.borrow_mut().do_draw = event.get_event_type() == gdk::EventType::ButtonPress;
+                        capture_event = true;
+                    },
+                    _ => {
+                        std::println!("{:#?}", event);
+                    }
+                }
+            }
+            gtk::Inhibit(capture_event)
+            //std::println!("{:#?}",event.get_event_type());
+            //std::println!("{:#?}", event.get_source_device().and_then(|d| d.get_property_tool()).map(|t| t.get_tool_type()));
+            //std::println!("{:#?}", event.get_device().and_then(|d| d.get_property_tool()).map(|t| t.get_tool_type()));
+            //std::println!("{:#?}\n", event.get_device_tool().map(|tool| tool.get_tool_type()));
+        });
+
+        window.add(&w_box);
+        window.show_all();
+    });
+
+    application.run(&[]);
+}