显示和从WPF隐藏屏幕键盘上的Windows 8

问题描述

我正在为Windows 8平板电脑编写WPF应用程序.它是完整的Windows 8，而不是ARM/RT.

I'm writing a WPF application for a Windows 8 tablet. It's full windows 8 and not ARM/RT.

当用户输入文本框时，我使用以下代码显示屏幕键盘:

When the user enters a textbox I show the on screen keyboard using the following code:

System.Diagnostics.Process.Start(@"C:\Program Files\Common Files\Microsoft Shared\ink\TabTip.exe");

这很好，但是我不知道如何再次隐藏键盘?

This works fine however I don't know how to hide the keyboard again?

有人知道该怎么做吗?

还有，我有什么方法可以调整应用程序的大小，以便在出现键盘时向上移动聚焦的控件?有点像Windows RT应用程序.

Also, is there any way I can resize my application so that focused control is moved up when the keyboard appears? A bit like it does for a windows RT application.

非常感谢

推荐答案

我可以使用以下C#代码成功关闭屏幕键盘.

I could successfully close onscreen keyboard with the following C# code.

[DllImport("user32.dll")]
public static extern int FindWindow(string lpClassName,string lpWindowName);

[DllImport("user32.dll")]
public static extern int SendMessage(int hWnd, uint Msg, int wParam, int lParam);

public const int WM_SYSCOMMAND = 0x0112;
public const int SC_CLOSE = 0xF060;

private void closeOnscreenKeyboard()
{
    // retrieve the handler of the window
    int iHandle = FindWindow("IPTIP_Main_Window", "");
    if (iHandle > 0)
    {
        // close the window using API
        SendMessage(iHandle, WM_SYSCOMMAND, SC_CLOSE, 0);
    }
}

private void Some_Event_Happened(object sender, EventArgs e)
{
    // It's time to close the onscreen keyboard.
    closeOnscreenKeyboard();
}

我希望这会对您有所帮助.

I hope this will help you.

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