Windows 8桌面应用程序:打开tabtip.exe到辅助键盘(对于数字文本框)

Question

我们正在开发一个在Windows 7平板电脑上运行的桌面WPF应用程序,并且正在添加一些带有Windows 8的Surface Pro设备.

当TextBox获得焦点时,我们立即注意到不再显示小键盘图标.我们通过在所有TextBox的MouseDown事件上运行"tabtip.exe"来解决它.

我们有一些数字文本框(订单上的项目数量),并且想要打开屏幕键盘进行数字输入,但默认情况下会打开qwerty键.

我一直在寻找任何命令行参数,我可以传递给tabtip.exe来改变它的输入模式,但没有运气.对于使用都市风格的应用程序来说,这似乎是一项微不足道的任务,但在桌面方面是不可能的.

是否有tabtip.exe的命令行参数我可以用来完成这个？

Answer 1

从@tymes提供的答案开始,这是一个快速控制台应用程序,它演示了打开键盘和更改各种设置(C#):

using System;
using System.Diagnostics;
using Microsoft.Win32;

namespace CSharpTesting
{
    class Program
    {
        /// <summary>
        /// The different layout types on the virtual keyboard.
        /// </summary>
        public enum KeyboardLayoutMode
        {
            Default,
            ThumbLayout,
            Handwriting
        }

        /// <summary>
        /// The registry key which holds the keyboard settings.
        /// </summary>
        private static readonly RegistryKey registryKey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey("Software\\Microsoft\\TabletTip\\1.7");

        static void Main(string[] args)
        {
            SetKeyboardDockedMode(true);
            SetKeyboardLayoutMode(KeyboardLayoutMode.ThumbLayout);
            ShowKeyboard(true);
        }

        /// <summary>
        /// Shows the onscreen keyboard.
        /// </summary>
        /// <param name="killExistingProcess">If true, kill any existing TabTip.exe process.</param>
        public static void ShowKeyboard(bool killExistingProcess)
        {
            if (killExistingProcess)
            {
                // If the user presses the close button on the keyboard then TabTip.exe will still run in the background. If we have made registry
                // changes to the keyboard settings, they don't take effect until the process is started again so killing this ensures the keyboard
                // will open with our new settings.
                foreach (var process in Process.GetProcessesByName("TabTip"))
                {
                    process.Kill();
                }
            }

            string onScreenKeyboardPath = @"C:\Program Files\Common Files\Microsoft Shared\ink\TabTip.exe";
            Process.Start(onScreenKeyboardPath);
        }

        /// <summary>
        /// Sets if the keyboard is in docked or floating mode.
        /// </summary>
        /// <param name="isDocked">If true set to docked, if false set to floating.</param>
        private static void SetKeyboardDockedMode(bool isDocked)
        {
            registryKey.SetValue("EdgeTargetDockedState", Convert.ToInt32(isDocked), RegistryValueKind.DWord);
        }

        /// <summary>
        /// Changes the layout mode of the keyboard.
        /// </summary>
        /// <param name="mode">The layout mode to use.</param>
        private static void SetKeyboardLayoutMode(KeyboardLayoutMode mode)
        {
            switch (mode)
            {
                case KeyboardLayoutMode.Handwriting:
                    registryKey.SetValue("KeyboardLayoutPreference", 0, RegistryValueKind.DWord);
                    registryKey.SetValue("LastUsedModalityWasHandwriting", 1, RegistryValueKind.DWord);
                    break;
                case KeyboardLayoutMode.ThumbLayout:
                    registryKey.SetValue("KeyboardLayoutPreference", 1, RegistryValueKind.DWord);
                    registryKey.SetValue("LastUsedModalityWasHandwriting", 0, RegistryValueKind.DWord);
                    // 0 = small, 1 = medium, 2 = large
                    registryKey.SetValue("ThumbKeyboardSizePreference", 2, RegistryValueKind.DWord);
                    break;
                default:
                    registryKey.SetValue("KeyboardLayoutPreference", 0, RegistryValueKind.DWord);
                    registryKey.SetValue("LastUsedModalityWasHandwriting", 0, RegistryValueKind.DWord);
                    break;
            }
        }
    }
}

Answer 2

在HKEY_CURRENT_USER\Software\Microsoft\TabletTip\1.7(Windows 8)中更改REG_DWORD KeyboardLayoutPreference 值0是常规布局值1是分割键盘与中间的数字键盘

REG_DWORD LastUsedModalityWasHandwriting也必须是0或者如果1,当tabtip再次启动时,它将用笔手写区域打开.