343 lines
12 KiB
C#
343 lines
12 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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using System.Management;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Threading;
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namespace MasaBlazorApp3.Util
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{
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public class VirtualKeyboardHelper
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{
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private const uint WS_VISIBLE = 0x10000000;
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private const int GWL_STYLE = -16;
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private const int WM_SYSCOMMAND = 0x0112;
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private const uint SC_CLOSE = 0xF060;
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private const int WS_DISABLED = 0x08000000;
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private const int DWMWA_CLOAKED = 14;
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private const string ApplicationFrameHostClassName = "ApplicationFrameWindow";
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private const string CoreWindowClassName = "Windows.UI.Core.CoreWindow";
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private const string TextInputApplicationCaption = "Microsoft Text Input Application";
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/// <summary>
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/// win10 虚拟键盘路径
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/// </summary>
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private const string Win10TabTipPath = @"C:\Program Files\Common Files\microsoft shared\ink\TabTip.exe";
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/// <summary>
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/// win7 虚拟键盘路径
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/// </summary>
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private const string Win7OskPath = @"C:\WINDOWS\system32\osk.exe";
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/// <summary>
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/// 虚拟键盘 窗口名称
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/// </summary>
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private const string TabTipWindowClassName = "IPTIP_Main_Window";
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[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
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private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
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[DllImport("user32.dll", EntryPoint = "FindWindowEx")]
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private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass,
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string lpszWindow);
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[DllImport("user32.dll", EntryPoint = "GetWindowLong")]
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private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
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[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
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private static extern bool PostMessage(IntPtr hWnd, int msg, uint wParam, uint lParam);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern bool Wow64DisableWow64FsRedirection(ref IntPtr ptr);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern bool Wow64RevertWow64FsRedirection(IntPtr ptr);
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[DllImport("user32.dll", EntryPoint = "GetDesktopWindow", SetLastError = false)]
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private static extern IntPtr GetDesktopWindow();
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[DllImport("dwmapi.dll", EntryPoint = "DwmGetWindowAttribute")]
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private static extern int DwmGetWindowAttribute(IntPtr intPtr, int dwAttribute, out int pvAttribute,
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uint cbAttribute);
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/// <summary>
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/// 判断键盘是否连接
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/// </summary>
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/// <returns></returns>
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public static bool IsKeyboardAttached()
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{
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try
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{
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ManagementObjectSearcher searcher =
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new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_Keyboard");
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int devCount = 0;
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foreach (ManagementObject obj in searcher.Get())
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{
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if (obj["Status"].ToString().Contains("OK")) // if device is ready
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{
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//surface测试时发现，HID设备，不是键盘，比较特殊
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if (!obj["Description"].ToString().Contains("HID Keyboard Device"))
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{
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devCount++;
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}
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}
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}
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return devCount > 0;
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}
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catch (Exception)
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{
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return false;
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}
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}
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/// <summary>
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/// 打开虚拟键盘，目前支持win7 64位，win10 64位，exe编译为x86。
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/// </summary>
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public static void ShowVirtualKeyboard()
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{
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//+------------------------------------------------------------------------------+
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//| | PlatformID | Major version | Minor version |
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//+------------------------------------------------------------------------------+
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//| Windows 95 | Win32Windows | 4 | 0 |
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//| Windows 98 | Win32Windows | 4 | 10 |
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//| Windows Me | Win32Windows | 4 | 90 |
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//| Windows NT 4.0 | Win32NT | 4 | 0 |
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//| Windows 2000 | Win32NT | 5 | 0 |
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//| Windows XP | Win32NT | 5 | 1 |
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//| Windows 2003 | Win32NT | 5 | 2 |
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//| Windows Vista | Win32NT | 6 | 0 |
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//| Windows 2008 | Win32NT | 6 | 0 |
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//| Windows 7 | Win32NT | 6 | 1 |
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//| Windows 2008 R2 | Win32NT | 6 | 1 |
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//| Windows 8 | Win32NT | 6 | 2 |
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//| Windows 8.1 | Win32NT | 6 | 3 |
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//+------------------------------------------------------------------------------+
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//| Windows 10 | Win32NT | 10 | 0 |
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try
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{
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var isWin7 = Environment.OSVersion.Version.Major == 6 && Environment.OSVersion.Version.Minor == 1;
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var isWin8OrWin10 =
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Environment.OSVersion.Version.Major == 6 && Environment.OSVersion.Version.Minor == 2;
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var isWin10 = Environment.OSVersion.Version.Major == 10 && Environment.OSVersion.Version.Minor == 0;
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if (isWin7)
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{
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//win7
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ShowWin7VirtualKeyboard();
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}
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else if (isWin8OrWin10 || isWin10)
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{
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//win10
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ShowWin10VirtualKeyboard();
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}
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}
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catch (Exception)
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{
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// ignored
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}
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}
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/// <summary>
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/// 关闭虚拟键盘
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/// </summary>
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public void CloseVirtualKeyboard()
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{
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var touchhWnd = FindWindow("IPTip_Main_Window", null);
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if (touchhWnd == IntPtr.Zero)
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{
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return;
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}
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PostMessage(touchhWnd, WM_SYSCOMMAND, SC_CLOSE, 0);
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}
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private static void ShowWin7VirtualKeyboard()
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{
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if (!Environment.Is64BitProcess && Environment.Is64BitOperatingSystem)
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{
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//32位程序 运行在64位系统上，打开32位程序，需要禁用文件重定向
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var ptr = new IntPtr();
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var isWow64FsRedirectionDisabled = Wow64DisableWow64FsRedirection(ref ptr);
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Process.Start(Win7OskPath);
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if (isWow64FsRedirectionDisabled)
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{
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Wow64RevertWow64FsRedirection(ptr);
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}
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}
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else if (Environment.Is64BitProcess && Environment.Is64BitOperatingSystem)
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{
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Process.Start(Win7OskPath);
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}
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}
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private static void ShowWin10VirtualKeyboard()
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{
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if (!IsTabTipProcessPresent())
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{
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ProcessStartInfo startInfo = new ProcessStartInfo();
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startInfo.FileName = Win10TabTipPath;
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startInfo.UseShellExecute = true;
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startInfo.Verb = "runas";
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Process.Start(startInfo);
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while (!IsValidHandle(FindWindow("IPTIP_Main_Window", "")))
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{
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Thread.Sleep(100);
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}
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}
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//判断可见性
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if (!IsWin10OnScreenKeyboardVisible())
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{
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ShowByCom();
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}
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}
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private static bool IsWin10OnScreenKeyboardVisible()
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{
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var handle = FindWindow(TabTipWindowClassName, "");
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if (!IsValidHandle(handle))
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{
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return false;
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}
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var isVisible = IsWindowVisibleByHandle(handle);
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if (isVisible.HasValue)
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{
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return isVisible.Value;
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}
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// hard way
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var textInputHandle = FindTextInputWindow();
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return IsValidHandle(textInputHandle);
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}
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private static IntPtr FindTextInputWindow()
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{
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var lastProbed = IntPtr.Zero;
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do
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{
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lastProbed = FindWindowEx(IntPtr.Zero, lastProbed, ApplicationFrameHostClassName, null);
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if (IsValidHandle(lastProbed))
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{
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var textInput = FindWindowEx(lastProbed, IntPtr.Zero, CoreWindowClassName,
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TextInputApplicationCaption);
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return textInput;
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}
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} while (IsValidHandle(lastProbed));
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return IntPtr.Zero;
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}
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private static bool? IsWindowVisibleByHandle(IntPtr handle)
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{
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var style = GetWindowLong(handle, GWL_STYLE);
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//Console.WriteLine( "Style {0:X8}", style );
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// if is disabled - not visible
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if ((style & WS_DISABLED) != 0)
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{
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return false;
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}
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// if has visible style - visible :)
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if ((style & WS_VISIBLE) != 0)
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{
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return true;
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}
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// DWM Window can be cloaked
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// see https://social.msdn.microsoft.com/Forums/vstudio/en-US/f8341376-6015-4796-8273-31e0be91da62/difference-between-actually-visible-and-not-visiblewhich-are-there-but-we-cant-see-windows-of?forum=vcgeneral
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if (DwmGetWindowAttribute(handle, DWMWA_CLOAKED, out var cloaked, 4) == 0)
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{
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if (cloaked != 0)
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{
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return false;
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}
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}
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// undefined
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return null;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private static bool IsValidHandle(IntPtr handle)
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{
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// if (?:) will be eliminated by jit
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return IntPtr.Size == 4
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? handle.ToInt32() > 0
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: handle.ToInt64() > 0;
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}
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private static bool IsTabTipProcessPresent()
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{
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var handle = FindWindow(TabTipWindowClassName, "");
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return IntPtr.Size == 4
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? handle.ToInt32() > 0
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: handle.ToInt64() > 0;
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}
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private static void ShowByCom()
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{
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ITipInvocation instance = null;
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try
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{
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instance = (ITipInvocation)Activator.CreateInstance(ComTypes.TipInvocationType);
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instance.Toggle(GetDesktopWindow());
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}
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finally
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{
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if (!ReferenceEquals(instance, null))
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{
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Marshal.ReleaseComObject(instance);
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}
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}
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}
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}
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[ComImport]
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[Guid("37c994e7-432b-4834-a2f7-dce1f13b834b")]
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[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
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internal interface ITipInvocation
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{
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void Toggle(IntPtr hwnd);
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}
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internal static class ComTypes
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{
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internal static readonly Guid ImmersiveShellBrokerGuid;
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internal static readonly Type ImmersiveShellBrokerType;
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internal static readonly Guid TipInvocationGuid;
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internal static readonly Type TipInvocationType;
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static ComTypes()
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{
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TipInvocationGuid = Guid.Parse("4ce576fa-83dc-4F88-951c-9d0782b4e376");
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TipInvocationType = Type.GetTypeFromCLSID(TipInvocationGuid);
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ImmersiveShellBrokerGuid = new Guid("228826af-02e1-4226-a9e0-99a855e455a6");
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ImmersiveShellBrokerType = Type.GetTypeFromCLSID(ImmersiveShellBrokerGuid);
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}
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}
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}
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