WPF:是否有可能“路由"?Windows 7中的普通鼠标事件触摸事件 [英] WPF: Is there a possibility to "route" ordinary mouse events to touch events in Windows 7

问题描述

我目前正在使用 C# (.NET 4.0) 和 WPF for Windows 7 开发一个触摸屏应用程序.我的问题是我目前可用的触摸屏驱动程序只生成鼠标事件.(遗憾的是，制造商不提供正版 Windows 7 驱动程序)所以，目前我无法正确进行测试.

是否有一种通用的方法来告诉 Windows 7 某个设备应该是触摸设备(尽管这 - 当然 - 只能提供单点触摸事件)?

解决方案

勾选这个.http://blakenui.codeplex.com/.有一个看起来像这样的 MouseTouchDevice.cs 文件.它将普通鼠标事件转换为操作事件.

///<总结>///用于将鼠标事件转化为触摸事件，实现统一///输入处理管道.///</总结>///<remarks>这个类最初来自 Blake.NUI - http://blakenui.codeplex.com</remarks>公共类 MouseTouchDevice : TouchDevice, ITouchDevice{#region 类成员私有静态 MouseTouchDevice 设备；公共点位置{获取；放;}#endregion#region 公共静态方法公共静态无效注册事件(框架元素根){root.PreviewMouseDown += MouseDown;root.PreviewMouseMove += MouseMove;root.PreviewMouseUp += MouseUp;root.LostMouseCapture += LostMouseCapture;root.MouseLeave += MouseLeave;}#endregion#region 私有静态方法私有静态无效 MouseDown(对象发送者，MouseButtonEventArgs e){如果(设备！= null &&设备.IsActive){device.ReportUp();设备.停用()；设备=空；}device = new MouseTouchDevice(e.MouseDevice.GetHashCode());device.SetActiveSource(e.MouseDevice.ActiveSource);device.Position = e.GetPosition(null);设备.激活()；device.ReportDown();}私有静态无效 MouseMove(对象发送者，MouseEventArgs e){如果(设备！= null &&设备.IsActive){device.Position = e.GetPosition(null);device.ReportMove();}}私有静态无效 MouseUp(对象发送者，MouseButtonEventArgs e){LostMouseCapture(sender, e);}静态无效 LostMouseCapture(对象发送者，MouseEventArgs e){如果(设备！= null &&设备.IsActive){device.Position = e.GetPosition(null);device.ReportUp();设备.停用()；设备=空；}}静态无效 MouseLeave(对象发送者，MouseEventArgs e){LostMouseCapture(sender, e);}#endregion#region 构造函数公共 MouseTouchDevice(int deviceId):基础(设备 ID){位置 = 新点()；}#endregion#region 覆盖的方法公共覆盖 TouchPointCollection GetIntermediateTouchPoints(IInputElement relativeTo){返回新的 TouchPointCollection();}公共覆盖 TouchPoint GetTouchPoint(IInputElement relativeTo){点点=位置；if (relativeTo != null){point = this.ActiveSource.RootVisual.TransformToDescendant((Visual)relativeTo).Transform(Position);}矩形 rect = new Rect(point, new Size(1, 1));return new TouchPoint(this, point, rect, TouchAction.Move);}#endregion}

}

我希望这是您正在寻找的.

I'm currently developing a touch screen application using C# (.NET 4.0) and WPF for Windows 7. My problem is that the driver of the touch screen I have available at the moment only generates mouse events. (The manufacturer unfortunately does not provide a genuine Windows 7 driver) So, currently I'm not able to do tests properly.

Is there a generic way to tell Windows 7 that a certain device is supposed to be a touch device (although this -- of course -- could only provide single touch events)?

解决方案

Check this. http://blakenui.codeplex.com/. There is a MouseTouchDevice.cs file that looks like this. It converts normal mouse events to Manipulation events.

/// <summary>
/// Used to translate mouse events into touch events, enabling a unified 
/// input processing pipeline.
/// </summary>
/// <remarks>This class originally comes from Blake.NUI - http://blakenui.codeplex.com</remarks>
public class MouseTouchDevice : TouchDevice, ITouchDevice
{
    #region Class Members

    private static MouseTouchDevice device;

    public Point Position { get; set; }

    #endregion

    #region Public Static Methods

    public static void RegisterEvents(FrameworkElement root)
    {
        root.PreviewMouseDown += MouseDown;
        root.PreviewMouseMove += MouseMove;
        root.PreviewMouseUp += MouseUp;
        root.LostMouseCapture += LostMouseCapture;
        root.MouseLeave += MouseLeave;
    }

    #endregion

    #region Private Static Methods

    private static void MouseDown(object sender, MouseButtonEventArgs e)
    {
        if (device != null &&
            device.IsActive)
        {
            device.ReportUp();
            device.Deactivate();
            device = null;
        }
        device = new MouseTouchDevice(e.MouseDevice.GetHashCode());
        device.SetActiveSource(e.MouseDevice.ActiveSource);
        device.Position = e.GetPosition(null);
        device.Activate();
        device.ReportDown();
    }

    private static void MouseMove(object sender, MouseEventArgs e)
    {
        if (device != null &&
            device.IsActive)
        {
            device.Position = e.GetPosition(null);
            device.ReportMove();
        }
    }

    private static void MouseUp(object sender, MouseButtonEventArgs e)
    {
        LostMouseCapture(sender, e);
    }

    static void LostMouseCapture(object sender, MouseEventArgs e)
    {
        if (device != null &&
            device.IsActive)
        {
            device.Position = e.GetPosition(null);
            device.ReportUp();
            device.Deactivate();
            device = null;
        }
    }

    static void MouseLeave(object sender, MouseEventArgs e)
    {
        LostMouseCapture(sender, e);
    }

    #endregion

    #region Constructors

    public MouseTouchDevice(int deviceId) :
        base(deviceId)
    {
        Position = new Point();
    }

    #endregion

    #region Overridden methods

    public override TouchPointCollection GetIntermediateTouchPoints(IInputElement relativeTo)
    {
        return new TouchPointCollection();
    }

    public override TouchPoint GetTouchPoint(IInputElement relativeTo)
    {
        Point point = Position;
        if (relativeTo != null)
        {
            point = this.ActiveSource.RootVisual.TransformToDescendant((Visual)relativeTo).Transform(Position);
        }

        Rect rect = new Rect(point, new Size(1, 1));

        return new TouchPoint(this, point, rect, TouchAction.Move);
    }

    #endregion
}

}

I am hoping this is what you are looking for.

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