如何防止WPF中Winforms web浏览器上的触摸反馈?

I'm using the WinForms version of <WebBrowser> in my WPF app, a la <WindowsFormsHost> because in general it works a lot better than the Windows.Controls version. However I have one problem that has to do with touch screens.

我正在我的WPF应用程序中使用WinForms版本的，这是一个的应用程序，因为它通常比Windows运行得更好。控制版本。但是我有一个问题和触摸屏有关。

Normally I set the ManipulationBoundaryFeedback event handler on controls to immediately handle the event, thereby preventing any boundary feedback, and I've tried to do so with this code:

通常，我在控件上设置操作边界反馈事件处理程序，以立即处理事件，从而防止任何边界反馈，并且我尝试用这段代码来做:

MainWindow.xaml

MainWindow.xaml

<WindowsFormsHost IsManipulationEnabled="True" ManipulationBoundaryFeedback="WindowsFormsHost_OnManipulationBoundaryFeedback">
    <forms:WebBrowser />
</WindowsFormsHost>

MainWindow.xaml.cs

MainWindow.xaml.cs

private void WindowsFormsHost_OnManipulationBoundaryFeedback(object sender, ManipulationBoundaryFeedbackEventArgs e)
{
    e.Handled = true;
}

On ordinary WPF controls, generally speaking, this works. And what I mean by "works" is that if you use your finger on the touch screen and drag up or down, you don't get the effects of touch screen intertia; that is, it doesn't shift the entire window up or down once you hit the boundary.

一般的WPF控制，一般来说，这是有效的。我所说的"作品"是指如果你用手指在触摸屏上上下拖动，你就不会得到触摸屏内部的效果;也就是说，当你到达边界时，它不会上下移动整个窗口。

Here's a picture to illustrate what's happening:

这里有一张图片来说明正在发生的事情:

As you can see, if I drag down within the browser, it pulls the entire window with it. What can I do to prevent this?

如你所见，如果我在浏览器中拖拽，它会拖拽整个窗口。我能做些什么来避免这种情况?

2 个解决方案

#1

You could turn off this behavior for the whole system:

你可以关闭整个系统的行为:

Open registry ( run regedit command )and set HKEY_CURRENT_USER\Software\Microsoft\Wisp\Touch Bouncing to 0; if HKEY_CURRENT_USER\Software\Microsoft\Wisp\Touch not exist Bouncing item, add it( DWORD type, Not QWORD or String) and set it value to 0.

打开注册表(运行regedit命令)，设置HKEY_CURRENT_USER\软件\Microsoft\Wisp\Touch弹跳为0;如果HKEY_CURRENT_USER\软件\Microsoft\Wisp\Touch不存在弹跳项，则添加它(DWORD类型，而不是QWORD或String)并将它的值设置为0。

This is not a good approch, through it solve my problem. And this answer is from manipulationboundaryfeedback-does-not-work-in-webbrowser-in-wpf.

这不是一个好的方法，通过它可以解决我的问题。这个答案来自于operationborder - feedback-does-not-work in- webbrowserin -wpf。

#2

Not sure if you still need this answer but to prevent this unnecessary behavior simply inherit WindowsFormsHost class and override OnManipulationBoundaryFeedback like this:

不确定您是否还需要这个答案，但是为了防止这种不必要的行为，只需继承WindowsFormsHost类，并重写这样的操作边界反馈:

public class MyClass : WindowsFormsHost
{

    // Override is optional to remove unnecessary behavior
    protected override void OnManipulationBoundaryFeedback(ManipulationBoundaryFeedbackEventArgs e)
    {
        // uncomment this to use base class implementation
        //base.OnManipulationBoundaryFeedback(e); 
        e.Handled = true;
    }
}

Edited

编辑

I have made a small test and added this code for my control

我做了一个小测试，并为我的控件添加了这个代码

protected override void OnManipulationBoundaryFeedback(ManipulationBoundaryFeedbackEventArgs e)
{
    Debug.WriteLine("OnManipulationBoundaryFeedback");
}

private void MyControl_ManipulationBoundaryFeedback(object sender, ManipulationBoundaryFeedbackEventArgs e)
{
    Debug.WriteLine("MyControl_ManipulationBoundaryFeedback");
}

and Output was the following

输出是这样的

OnManipulationBoundaryFeedback

OnManipulationBoundaryFeedback

MyControl_ManipulationBoundaryFeedback

MyControl_ManipulationBoundaryFeedback

OnManipulationBoundaryFeedback

OnManipulationBoundaryFeedback

MyControl_ManipulationBoundaryFeedback

MyControl_ManipulationBoundaryFeedback

OnManipulationBoundaryFeedback

OnManipulationBoundaryFeedback

MyControl_ManipulationBoundaryFeedback

MyControl_ManipulationBoundaryFeedback

OnManipulationBoundaryFeedback

OnManipulationBoundaryFeedback

MyControl_ManipulationBoundaryFeedback

MyControl_ManipulationBoundaryFeedback

So you can see that OnManipulationBoundaryFeedback launched first and then it invokes ManipulationBoundaryFeedbackEvent handlers

你可以看到onmanipulation ationboundary - feedback首先被启动，然后它调用了controationborder - feedbackevent处理程序

#1