How to Enable/Disable Three- and four-finger touch gestures using C#?

Question

Hi Everyone, Just want to ask if is there any C# code to enable/disable the Three- and four-finger touch gestures in Windows. Settings > Bluetooth & devices > Touch > Three- and four-finger touch gestures I have some options related to registry modification: [HKEY_CURRENT_USER\Control Panel\Desktop]

three-and four-finger touch gestures to on:
"TouchGestureSetting"=dword:00000001

Three four-finger touch gestures to off:
"TouchGestureSetting"=dword:00000000 But after modification of this need to restart the machine. I expect to enable or disable this option without restarting the machine.

Thanks & Regards Amit Kumar

Answer 1

SPI_SETGESTURE = 0x09B maybe already not right on Win11 24H2, I use frida to detect the value is SPI_SETGESTURE = 0x2031

Answer 2

Hi @Kumar, Amit - Dell Team , Welcome to Microsoft Q&A,

If you want to use C# to modify the registry, you can try to useRegistry.GetValue(String, String, Object) Method.

To modify the registry using C# and enable/disable the three- and four-finger touch gestures without requiring a machine restart, you can use the Microsoft.Win32 namespace. A similar example code is:

using System;
using Microsoft.Win32;
using System.Runtime.InteropServices;

class Program
{
    // Define the constants for SPI_SETGESTURE (touch gestures)
    private const uint SPI_SETGESTURE = 0x009B;
    private const uint SPIF_SENDCHANGE = 0x02;

    // Define the flags for touch gestures
    private const uint GESTURE_ENABLE = 1;
    private const uint GESTURE_DISABLE = 0;

    // Import the SystemParametersInfo function from user32.dll
    [DllImport("user32.dll", SetLastError = true)]
    private static extern bool SystemParametersInfo(uint uiAction, uint uiParam, IntPtr pvParam, uint fWinIni);

    static void Main(string[] args)
    {
        // Modify the registry to enable/disable touch gestures
        ModifyTouchGestureSettings(GESTURE_ENABLE); // Change this to GESTURE_DISABLE if you want to disable

        // Notify the system about the change
        SystemParametersInfo(SPI_SETGESTURE, 0, IntPtr.Zero, SPIF_SENDCHANGE);
        
        Console.WriteLine("Touch gesture settings updated.");
    }

    // Function to modify the registry settings
    static void ModifyTouchGestureSettings(uint setting)
    {
        // Registry key path
        const string keyPath = @"HKEY_CURRENT_USER\Control Panel\Desktop";

        // Registry value name
        const string valueName = "TouchGestureSetting";

        // Modify the registry value
        Registry.SetValue(keyPath, valueName, setting, RegistryValueKind.DWord);
    }
}

Best Regards,

Jiale

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