diff --git a/app.js b/app.js
index a6254b7..14d0d8d 100644
--- a/app.js
+++ b/app.js
@@ -38,6 +38,15 @@ bind($('.btn4'), 'click', async function () {
   // native.clipboard.clear()
 })
 
+bind($('.btn5'), 'click', async function () {
+  native.tray()
+})
+
+bind($('.btn6'), 'click', async function () {
+  console.log(await native.screen.getAllDisplays())
+  console.log(await native.screen.getPrimaryDisplay())
+})
+
 bind($('textarea'), 'paste', async function (ev) {
   let items = ev.clipboardData.items
   for (let it of items) {
diff --git a/index.html b/index.html
index 7b4e8b5..aca0cc8 100644
--- a/index.html
+++ b/index.html
@@ -34,6 +34,8 @@
 <hr>
 <button class="btn3">写图片到剪切板</button>
 <button class="btn4">退出</button>
+<button class="btn5">tray</button>
+<button class="btn6">screen</button>
 <img style="width:100px;border:1px solid #09f;" src="" alt="">
 <textarea></textarea>
   
diff --git a/inject.js b/inject.js
index a3e7149..8c608ae 100644
--- a/inject.js
+++ b/inject.js
@@ -185,5 +185,13 @@ Object.assign(native, {
       return handler('clipboard', { action: 'clear' })
     }
   },
+  screen: {
+    getAllDisplays() {
+      return handler('monitor', { action: 'get-all' })
+    },
+    getPrimaryDisplay() {
+      return handler('monitor', { action: 'get-primary' })
+    }
+  },
   handler
 })
diff --git a/main.py b/main.py
index 41ea53b..bf67661 100755
--- a/main.py
+++ b/main.py
@@ -18,6 +18,22 @@ except (ValueError, ImportError):
   AppIndicator3 = None
 
 
+def get_monitor_info(monitor):
+  return {
+    "model": monitor.props.model, 
+    "scale_factor": monitor.props.scale_factor, 
+    "manufacturer": monitor.props.manufacturer, 
+    "refresh_rate": monitor.props.refresh_rate,
+    "is_primary": monitor.is_primary(),
+    "geometry": {
+      "width": monitor.props.geometry.width, 
+      "height": monitor.props.geometry.height, 
+      "x": monitor.props.geometry.x, 
+      "y": monitor.props.geometry.y, 
+    }
+  }
+
+
 class WebKitWindow(Gtk.Window):
   def __init__(self):
 
@@ -59,8 +75,8 @@ class WebKitWindow(Gtk.Window):
 
 
  
-    # self.webview.load_uri("http://127.0.0.1:10086/index.html")
-    self.webview.load_uri("https://benchmark.wkit.fun")
+    self.webview.load_uri("http://127.0.0.1:10086/index.html")
+    # self.webview.load_uri("https://benchmark.wkit.fun")
 
 
     self.clipboard = Gtk.Clipboard.get(Gdk.SELECTION_CLIPBOARD)
@@ -72,6 +88,8 @@ class WebKitWindow(Gtk.Window):
 
 
 
+
+
   def create_tray(self):
 
     if AppIndicator3 :
@@ -190,6 +208,25 @@ class WebKitWindow(Gtk.Window):
         self.webview.send_message_to_page(WebKit2.UserMessage.new('blabla'))
         self.webview.evaluate_javascript(scripts, -1)
 
+
+      case 'monitor':
+        if params['action'] == 'get-all':
+          display = Gdk.Display.get_default()
+          monitor_num = display.get_n_monitors()
+          monitors = [display.get_monitor(i) for i in range(monitor_num)]
+          monitors = [get_monitor_info(m) for m in monitors]
+
+          scripts = 'native.$emit("' + callback + '",' + json.dumps(monitors) + ')'
+          self.webview.evaluate_javascript(scripts, -1)
+
+        elif params['action'] == 'get-primary':
+          display = Gdk.Display.get_default()
+          monitor = display.get_primary_monitor()
+          info = get_monitor_info(monitor)
+
+          scripts = 'native.$emit("' + callback + '",' + json.dumps(info) + ')'
+          self.webview.evaluate_javascript(scripts, -1)
+
       case _:
         if callback :
           res = {"foo": 123, "bar": (11,22,33)}
@@ -206,6 +243,11 @@ win = WebKitWindow()
 win.connect("destroy", Gtk.main_quit)
 win.show_all()
 
+
+
+
+
+
 tray = win.create_tray()
 
 Gtk.main()
\ No newline at end of file
diff --git a/notes/monitor.py b/notes/monitor.py
new file mode 100644
index 0000000..d800d9b
--- /dev/null
+++ b/notes/monitor.py
@@ -0,0 +1,30 @@
+import gi
+
+gi.require_version("Gtk", "3.0")
+gi.require_version("WebKit2", "4.1")
+
+from gi.repository import Gtk, Gdk
+
+
+
+def get_monitor_info(monitor):
+  return {
+    "model": monitor.props.model, 
+    "scale_factor": monitor.props.scale_factor, 
+    "manufacturer": monitor.props.manufacturer, 
+    "refresh_rate": monitor.props.refresh_rate,
+    "is_primary": monitor.is_primary(),
+    "geometry": {
+      "width": monitor.props.geometry.width, 
+      "height": monitor.props.geometry.height, 
+      "x": monitor.props.geometry.x, 
+      "y": monitor.props.geometry.y, 
+    }
+  }
+
+
+
+display = Gdk.Display.get_default()
+monitor_num = display.get_n_monitors()
+monitors = [display.get_monitor(i) for i in range(monitor_num)]
+monitors = [get_monitor_info(m) for m in monitors]
\ No newline at end of file