ScreenPad brightness control

app/AsusACPI.cs

@@ -92,6 +92,9 @@ public class AsusACPI
     public const int TabletState = 0x00060077;
     public const int FnLock = 0x00100023;
 
+    public const int ScreenPadToggle = 0x00050031;
+    public const int ScreenPadBrightness = 0x00050032;
+
     public const int Tablet_Notebook = 0;
     public const int Tablet_Tablet = 1;
     public const int Tablet_Tent = 2;

app/Extra.cs

@@ -116,6 +116,12 @@ namespace GHelper
 
             Text = Properties.Strings.ExtraSettings;
 
+            if (AppConfig.ContainsModel("Duo"))
+            {
+                customActions.Add("screenpad_down", Properties.Strings.ScreenPadDown);
+                customActions.Add("screenpad_up", Properties.Strings.ScreenPadUp);
+            }
+
             InitTheme();
 
             SetKeyCombo(comboM1, textM1, "m1");

app/Input/InputDispatcher.cs

@@ -315,6 +315,12 @@ namespace GHelper.Input
                 case "brightness_down":
                     HandleOptimizationEvent(16);
                     break;
+                case "screenpad_up":
+                    SetScreenpad(10);
+                    break;
+                case "screenpad_down":
+                    SetScreenpad(-10);
+                    break;
                 case "custom":
                     CustomKey(name);
                     break;
@@ -479,6 +485,21 @@ namespace GHelper.Input
 
         }
 
+        public static void SetScreenpad(int delta)
+        {
+            int brightness = AppConfig.Get("screenpad", 100);
+            brightness = Math.Max(Math.Min(100, brightness + delta), 0);
+
+            AppConfig.Set("screenpad", brightness);
+
+            Program.acpi.DeviceSet(AsusACPI.ScreenPadBrightness, (brightness*255/100), "Screenpad");
+            if (brightness == 0) Program.acpi.DeviceSet(AsusACPI.ScreenPadToggle, brightness, "ScreenpadToggle");
+
+            Program.toast.RunToast($"Screen Pad {brightness}", delta > 0 ? ToastIcon.BrightnessUp : ToastIcon.BrightnessDown);
+
+        }
+
+
         static void LaunchProcess(string command = "")
         {
 

app/Properties/Strings.Designer.cs

@@ -1043,6 +1043,24 @@ namespace GHelper.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Screenpad Brightness Down.
+        /// </summary>
+        internal static string ScreenPadDown {
+            get {
+                return ResourceManager.GetString("ScreenPadDown", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Screenpad Brightness Up.
+        /// </summary>
+        internal static string ScreenPadUp {
+            get {
+                return ResourceManager.GetString("ScreenPadUp", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Shutdown.
         /// </summary>

app/Properties/Strings.resx

@@ -446,6 +446,12 @@ Do you still want to continue?</value>
   <data name="RunOnStartup" xml:space="preserve">
     <value>Run on Startup</value>
   </data>
+  <data name="ScreenPadDown" xml:space="preserve">
+    <value>Screenpad Brightness Down</value>
+  </data>
+  <data name="ScreenPadUp" xml:space="preserve">
+    <value>Screenpad Brightness Up</value>
+  </data>
   <data name="Shutdown" xml:space="preserve">
     <value>Shutdown</value>
   </data>