Question

我正在MVVM项目中实现此处描述的解决方案：http://nui.joshland.org/2010/04/why-wont-wpf-controls-work-with-touch.html

但问题是，如果我在XAML中的UserControl中实现TouchDown和TouchUp事件处理程序，那么我遇到一个问题，其他GroupView无法再获取用于轻弹的窗口消息 - 或者无法处理轻弹因此，他们的关联窗口消息永远不会被发送。

视图的自上而下结构是： ButtonsView - 具有Touch事件处理程序 GroupView - 具有鼠标事件处理程序和Flicks事件处理程序

我在代码隐藏中使用它来挂钩电影并处理它们：

    private void UserControl_Loaded(object sender, RoutedEventArgs e)
    {
        HwndSource source = PresentationSource.FromVisual(this) as HwndSource;
        source.AddHook(WndProc);
    }

    private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
    {
        if (msg == Flicks.WM_TABLET_FLICK)
        {
            Flick flick = Flicks.ProcessMessage(lParam, wParam);
            if (flick != null)
            {
                if (flick.Data.Direction == FLICKDIRECTION.FLICKDIRECTION_LEFT)
                    Scroller("left"); //scrolls left
                else if (flick.Data.Direction == FLICKDIRECTION.FLICKDIRECTION_RIGHT)
                    Scroller("right"); //scrolls right
                else if (flick.Data.Direction == FLICKDIRECTION.FLICKDIRECTION_UP)
                    Scroller("up"); //move up
                else if (flick.Data.Direction == FLICKDIRECTION.FLICKDIRECTION_DOWN)
                    Scroller("down"); //move down
                    handled = true;
            }
        }
        return IntPtr.Zero;
    }

思考/建议？我对WPF很新。感谢

Answer 1

我通过在ButtonsView中捕获鼠标事件和轻弹事件来解决这个问题，这样他们就不会向下隧道到GroupView。

WPF触摸事件+电影？

1 个答案: