Revert "Fix mistake"

This reverts commit e89b2981e7.

src/DesktopMagicPlugin.Test/PluginScript.cs

@@ -1,4 +1,5 @@
 using DesktopMagicPluginAPI;
+using DesktopMagicPluginAPI.Inputs;
 using System;
 using System.Diagnostics;
 using System.Drawing;
@@ -7,17 +8,59 @@ namespace DesktopMagicPlugin.Test
 {
     public class PluginScript : Plugin
     {
-        public override Bitmap Main()
+        [Element]
+        private Label heading = new Label("Heading", true);
+
+        [Element]
+        private Label label = new Label("");
+
+        [Element("Slider:")]
+        private Slider slider = new Slider(1, 23, 4);
+
+        [Element("Text:")]
+        private TextBox textBox = new TextBox("abc");
+
+        [Element]
+        private Button button = new Button("Press me!");
+
+        public override int UpdateInterval { get; set; }
+
+        public PluginScript()
         {
-            Bitmap bmp = new Bitmap(100, 100);
-            using Graphics g = Graphics.FromImage(bmp);
-            g.Clear(Application.Color);
-            return bmp;
+            slider.OnValueChanged += Slider_OnValueChanged;
+            textBox.OnValueChanged += TextBox_OnValueChanged;
+            button.OnClick += Button_OnClick; ;
         }
 
-        public override void OnMouseClick(Point position)
+        private void Button_OnClick()
         {
-            Debug.WriteLine(position);
+            Debug.WriteLine("Button pressed");
+            Application.UpdateWindow();
+        }
+
+        private void TextBox_OnValueChanged()
+        {
+            Debug.WriteLine("TextBox value changed:" + textBox.Value);
+        }
+
+        private void Slider_OnValueChanged()
+        {
+            Debug.WriteLine("Slider value changed:" + slider.Value);
+        }
+
+        public override Bitmap Main()
+        {
+            string str = $"{textBox.Value}: {slider.Value}";
+
+            Bitmap bmp = new Bitmap(1000, 1000);
+            using Graphics g = Graphics.FromImage(bmp);
+            g.Clear(Application.Color);
+            g.DrawString(str, new Font(Application.Font, 100), Brushes.Black, new PointF(0, 0));
+
+            label.Value = str;
+            slider.Value++;
+
+            return bmp;
         }
     }
 }