进一步的挖掘帮助我整理了以下内容,作为在系统范围内切换触摸开/关的一种方式。如果有人知道如何以其他 3 种方式中的任何一种来实现这一点,我仍然会很感激这些答案。
基本步骤是检查当前注册表状态,如有必要进行更改(然后刷新系统以识别更改),并记录初始状态以在程序退出时恢复(如果需要)。
感谢这两个教育 链接上的海报。
public MainWindow(){
InitializeComponent();
RegistryKey regKey = Registry.CurrentUser;
regKey = regKey.OpenSubKey(@"Software\Microsoft\Wisp\Touch", true);
string currKey = regKey.GetValue("TouchGate").ToString();
if (currKey == "1")
{
regKey.SetValue("TouchGate", 0x00000000);
User32Utils.Notify_SettingChange();
UserConfig.TGate = "1";
}
regKey.Close();
...
}
public static class UserConfig {
public static string TGate { get; set; }
...
}
private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e){
...
if (UserConfig.TGate == "1")
{
RegistryKey regKey = Registry.CurrentUser;
regKey = regKey.OpenSubKey(@"Software\Microsoft\Wisp\Touch", true);
regKey.SetValue("TouchGate", 0x00000001);
User32Utils.Notify_SettingChange();
regKey.Close();
}
}
//------------------User32Utils.cs
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
namespace (...)
{
internal class User32Utils
{
#region USER32 Options
static IntPtr HWND_BROADCAST = new IntPtr(0xffffL);
static IntPtr WM_SETTINGCHANGE = new IntPtr(0x1a);
#endregion
#region STRUCT
enum SendMessageTimeoutFlags : uint
{
SMTO_NORMAL = 0x0000,
SMTO_BLOCK = 0x0001,
SMTO_ABORTIFHUNG = 0x2,
SMTO_NOTIMEOUTIFNOTHUNG = 0x0008
}
#endregion
#region Interop
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
static extern IntPtr SendMessageTimeout(IntPtr hWnd,
uint Msg,
UIntPtr wParam,
UIntPtr lParam,
SendMessageTimeoutFlags fuFlags,
uint uTimeout,
out UIntPtr lpdwResult);
#endregion
internal static void Notify_SettingChange()
{
UIntPtr result;
SendMessageTimeout(HWND_BROADCAST, (uint)WM_SETTINGCHANGE,
UIntPtr.Zero, UIntPtr.Zero,
SendMessageTimeoutFlags.SMTO_NORMAL, 1000, out result);
}
}
}