确定Windows 10触摸键盘是可见的还是隐藏的
确定Windows 10触摸键盘是可见的还是隐藏的
提问于 2017-11-08 18:36:27
我试图找出windows 10虚拟触摸键盘是否可见，是否从我的应用程序中打开它。下面的THe代码一直运行良好，直到最新的Windows10UPDATE 15063或可能就在它之前的一个。看起来微软可能改变了一些窗口样式，但我搞不懂。
public static bool IsKeyboardVisible()
{
IntPtr keyboardHandle = GetKeyboardWindowHandle();
// Specifies we wish to retrieve window styles.
int GWL_STYLE = -16;
//The window is disabled. See http://msdn.microsoft.com/en-gb/library/windows/desktop/ms632600(v=vs.85).aspx.
UInt32 WS_VISIBLE = 0x10000000;
UInt32 WS_DISABLED = 0x08000000;
UInt32 WS_POPUP = 0x80000000;
bool visible = false;
bool disabled = false;
if (keyboardHandle != IntPtr.Zero)
{
UInt32 style = GetWindowLong(keyboardHandle, GWL_STYLE);
visible = ((style & WS_VISIBLE) == WS_VISIBLE);
disabled = ((style & WS_DISABLED) == WS_DISABLED); // ref https://stackoverflow.com/questions/11065026/get-window-state-of-another-process
log.InfoFormat("style:{0:X4} visible:{1} disabled:{2}", style, visible, disabled);
}
return visible && !disabled ;
}回答 3
Stack Overflow用户
回答已采纳
发布于 2017-11-21 04:13:54
我和Spy++做过一些研究。看起来像秋季创建者更新中的新键盘。1709)由另一个窗口托管。这个窗口的标题是Windows.UI.Core.CoreWindow类和Microsoft Text Input Application。
下面的代码适用于所有Windows 10版本，包括新的1803和更旧的Windows版本(我相信从Windows 8开始)。
static class TouchKeyboard
{
public static bool GetIsOpen()
{
return GetIsOpen1709() ?? GetIsOpenLegacy();
}
private static bool? GetIsOpen1709()
{
var parent = IntPtr.Zero;
for (;;)
{
parent = FindWindowEx(IntPtr.Zero, parent, WindowParentClass1709);
if (parent == IntPtr.Zero)
return null; // no more windows, keyboard state is unknown
// if it's a child of a WindowParentClass1709 window - the keyboard is open
var wnd = FindWindowEx(parent, IntPtr.Zero, WindowClass1709, WindowCaption1709);
if (wnd != IntPtr.Zero)
return true;
}
}
private static bool GetIsOpenLegacy()
{
var wnd = FindWindowEx(IntPtr.Zero, IntPtr.Zero, WindowClass);
if (wnd == IntPtr.Zero)
return false;
var style = GetWindowStyle(wnd);
return style.HasFlag(WindowStyle.Visible)
&& !style.HasFlag(WindowStyle.Disabled);
}
private const string WindowClass = "IPTip_Main_Window";
private const string WindowParentClass1709 = "ApplicationFrameWindow";
private const string WindowClass1709 = "Windows.UI.Core.CoreWindow";
private const string WindowCaption1709 = "Microsoft Text Input Application";
private enum WindowStyle : uint
{
Disabled = 0x08000000,
Visible = 0x10000000,
}
private static WindowStyle GetWindowStyle(IntPtr wnd)
{
return (WindowStyle)GetWindowLong(wnd, -16);
}
[DllImport("user32.dll", SetLastError = false)]
private static extern IntPtr FindWindowEx(IntPtr parent, IntPtr after, string className, string title = null);
[DllImport("user32.dll", SetLastError = false)]
private static extern uint GetWindowLong(IntPtr wnd, int index);
}更新：I更新了答案和代码，以便与Redstone 4 (v1803)兼容。
Stack Overflow用户
发布于 2019-04-04 10:21:30
我正在使用此解决方案，它正在Windows 1607、1709和1803上运行(请查看下面的主要代码方法)：
using System;
using System.Drawing;
using System.Runtime.InteropServices;
namespace ConsoleApp1
{
class Program
{
[ComImport, Guid("D5120AA3-46BA-44C5-822D-CA8092C1FC72")]
public class FrameworkInputPane
{
}
[ComImport, System.Security.SuppressUnmanagedCodeSecurity,
InterfaceType(ComInterfaceType.InterfaceIsIUnknown),
Guid("5752238B-24F0-495A-82F1-2FD593056796")]
public interface IFrameworkInputPane
{
[PreserveSig]
int Advise(
[MarshalAs(UnmanagedType.IUnknown)] object pWindow,
[MarshalAs(UnmanagedType.IUnknown)] object pHandler,
out int pdwCookie
);
[PreserveSig]
int AdviseWithHWND(
IntPtr hwnd,
[MarshalAs(UnmanagedType.IUnknown)] object pHandler,
out int pdwCookie
);
[PreserveSig]
int Unadvise(
int pdwCookie
);
[PreserveSig]
int Location(
out Rectangle prcInputPaneScreenLocation
);
}
static void Main(string[] args)
{
var inputPane = (IFrameworkInputPane)new FrameworkInputPane();
inputPane.Location(out var rect);
Console.WriteLine((rect.Width == 0 && rect.Height == 0) ? "Keyboard not visible" : "Keyboard visible");
}
}
}它使用IFrameworkInputPane接口(核心-iframeworkinput窗格)。
Stack Overflow用户
发布于 2017-11-27 01:05:01
我发现了另一个无文档的COM，它返回触摸键盘的位置。如果键盘是隐藏的，则返回键盘窗口的界限或零。我在Windows 8.1、Windows 10和Windows 10 Fall Creators Update中测试了它，它运行得很好。
现在有一些坏消息:在Fall Creators Update之前的所有版本中，只有当活动窗口和触摸键盘位于同一个监视器上时，它才会报告准确的结果。如果不是这样的话，API只返回前面缓存的值。我猜这和这个API是用来计算触摸键盘和你的应用程序窗口的遮挡有关。(它在Windows::UI::ViewManagement::InputPane.get_OccludedRect() UWP中被调用)。
因此，如果您不关心支持旧版本或多监视器场景，请使用它。否则，我建议检查Windows并回到以前的方法(GetIsOpenLegacy()，来自我的另一个答案)。
空气污染指数：
[ComImport, Guid("228826af-02e1-4226-a9e0-99a855e455a6")]
class ImmersiveShellBroker
{
}
[ComImport, Guid("9767060c-9476-42e2-8f7b-2f10fd13765c")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
interface IImmersiveShellBroker
{
void Dummy();
IInputHostManagerBroker GetInputHostManagerBroker();
}
[ComImport, Guid("2166ee67-71df-4476-8394-0ced2ed05274")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
interface IInputHostManagerBroker
{
void GetIhmLocation(out Rect rect, out DisplayMode mode);
}
[StructLayout(LayoutKind.Sequential)]
struct Rect
{
public int Left, Top, Right, Bottom;
}
enum DisplayMode
{
NotSupported = 0,
Floating = 2,
Docked = 3,
}用法示例：
// do this once:
var brokerClass = new ImmersiveShellBroker();
var broker = (IImmersiveShellBroker)brokerClass;
var ihm = broker.GetInputHostManagerBroker();
Marshal.ReleaseComObject(broker);
// now ihm reference can be cached and used later:
Rect rect;
DisplayMode mode;
ihm.GetIhmLocation(out rect, out mode);注意:看起来GetIhmLocation()总是返回DisplayMode.NotSupported，而不是Windows 10之前的实际mode。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/47187216
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