c#调用windows虚拟键盘

2020/10/20

调用windows自带的tabtip.exe来调用虚拟键盘。

我们在textBox获取焦点时候进行调用虚拟键盘 

private void textBox_GotFocus(object sender, RoutedEventArgs e)
{ try {
    dynamic file = "C:\\Program Files\\Common Files\\microsoft shared\\ink\\TabTip.exe"; if (!System.IO.File.Exists(file)) return;
    Process.Start(file);
} catch (Exception)
{
}     


}

失去焦点进行关闭虚拟键盘

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, uint wParam, uint lParam);
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] private static extern IntPtr FindWindow(string lpClassName, string lpWindowName); private void textBox_LostFocus(object sender, RoutedEventArgs e)
{
    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:\windows\system32\osk.exe");