WPF窗口偶发触摸不响应，但鼠标点击响应

[weixin_38063619]

最近用WPF开发触摸屏软件，控件上的事件都是用mouse事件，正常的时候触摸是可以响应的，但是操作一会偶发会出现触摸不响应。但这个时候我用鼠标操作是可以的。（只是我写的这个WPF窗口不响应触摸，弹出个tastmgr，资源管理器是响应触摸的）求助  这是什么原因？？
我搜到了一个跟我遇到应该是一样的问题，但没有解决方案  https://social.msdn.microsoft.com/Forums/vstudio/en-US/ac81b552-44ac-4410-a5cd-4dbf6132a634/wpf-apps-stop-responding-to-touches-while-mouse-continues-to-work?forum=wpf

[weixin_38107053]

据我所知这是一个从.Net 4.5.1就有一个类似的Bug，在.Net 4.7中才修复。

[weixin_38098817]

这段代码对我好像起作用，最近这个问题一直没有发生了public static void DisableWPFTabletSupport() { // Get a collection of the tablet devices for this window. TabletDeviceCollection devices = System.Windows.Input.Tablet.TabletDevices; if (devices.Count > 0) { // Get the Type of InputManager. Type inputManagerType = typeof(System.Windows.Input.InputManager); // Call the StylusLogic method on the InputManager.Current instance. object stylusLogic = inputManagerType.InvokeMember("StylusLogic", BindingFlags.GetProperty | BindingFlags.Instance | BindingFlags.NonPublic, null, InputManager.Current, null); if (stylusLogic != null) { // Get the type of the device class. Type devicesType = devices.GetType(); // Loop until there are no more devices to remove. int count = devices.Count + 1; while (devices.Count > 0) { // Remove the first tablet device in the devices collection. devicesType.InvokeMember("HandleTabletRemoved", BindingFlags.InvokeMethod | BindingFlags.Instance | BindingFlags.NonPublic, null, devices, new object[] { (uint)0 }); count--; if (devices.Count != count) { throw new Win32Exception("Unable to remove real-time stylus support."); } } } } }

[weixin_38117590]

这段代码对我好像起作用，最近这个问题一直没有发生了public static void DisableWPFTabletSupport() { // Get a collection of the tablet devices for this window. TabletDeviceCollection devices = System.Windows.Input.Tablet.TabletDevices; if (devices.Count > 0) { // Get the Type of InputManager. Type inputManagerType = typeof(System.Windows.Input.InputManager); // Call the StylusLogic method on the InputManager.Current instance. object stylusLogic = inputManagerType.InvokeMember("StylusLogic", BindingFlags.GetProperty | BindingFlags.Instance | BindingFlags.NonPublic, null, InputManager.Current, null); if (stylusLogic != null) { // Get the type of the device class. Type devicesType = devices.GetType(); // Loop until there are no more devices to remove. int count = devices.Count + 1; while (devices.Count > 0) { // Remove the first tablet device in the devices collection. devicesType.InvokeMember("HandleTabletRemoved", BindingFlags.InvokeMethod | BindingFlags.Instance | BindingFlags.NonPublic, null, devices, new object[] { (uint)0 }); count--; if (devices.Count != count) { throw new Win32Exception("Unable to remove real-time stylus support."); } } } } }