• C#调用Windows(8/10)自带的虚拟键盘


    注:这是电子屏(触屏)的键盘,普通PC没有这种键盘的;

    以下是调用代码:

    private const Int32 WM_SYSCOMMAND = 274;
    private const UInt32 SC_CLOSE = 61536;
    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    private static extern bool PostMessage(IntPtr hWnd, int Msg, int wParam, int lParam);
    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    private static extern bool PostMessage(IntPtr hWnd, int Msg, uint wParam, uint lParam);
    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    private static extern bool PostMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    private static extern int RegisterWindowMessage(string lpString);
     
     //显示屏幕键盘
    public static int ShowInputPanel()
    {
          try
          {
                dynamic file = "C:\Program Files\Common Files\microsoft shared\ink\TabTip.exe";
                if (!System.IO.File.Exists(file))
                    return -1;
                Process.Start(file);
                //return SetUnDock(); //不知SetUnDock()是什么,所以直接注释返回1
                return 1;
          }
          catch (Exception)
          {
                return 255;
          }
    }
    
    //隐藏屏幕键盘
    public static void HideInputPanel(){
          IntPtr TouchhWnd = new IntPtr(0);
          TouchhWnd = FindWindow("IPTip_Main_Window", null);
          if (TouchhWnd == IntPtr.Zero)
                return;
          PostMessage(TouchhWnd, WM_SYSCOMMAND, SC_CLOSE, 0);
    }
    

    Windows系统还有一个OSK的虚拟键盘,这个是浮动的,和自动弹出的键盘有点区别,需要的话也可以直接调用。 

    Process.Start(@"C:windowssystem32osk.exe");
    
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  • 原文地址:https://www.cnblogs.com/sntetwt/p/9269691.html
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