从UnsafeNativeMethods.DispatchMessageA引发的异常 [英] Exception thrown from UnsafeNativeMethods.DispatchMessageA

问题描述

我使用了第三部分组件，该组件为非托管C ++组件提供了托管包装器.

I've used a third part component which provided a managed wrapper to unmanaged C++ component.

但是UnsafeNativeMethods.DispatchMessageA有时会引发异常.然后我的应用程序崩溃了.无论如何要捕捉那些异常以避免我的应用崩溃?

But UnsafeNativeMethods.DispatchMessageA throws exception from time to time. Then my app crashes. Anyway to catch those exceptions to avoid my app crashing?

未处理的异常:  System.Exception:错误: 可以  不能   获取  已注册  类型- mteIndex ='4294967295'classNameKey =''
   在Kitware.mummy.Runtime.Methods中. GetConstructorInfo (UInt32 mteIndex)
 在Kitware.mummy.Runtime.Methods.CreateWrappedObjectImpl(UInt32 mteStatus，UInt32 mteIndex，UInt32 rawRefCount，IntPtr rawCppThis，布尔值callDisposalMethod， 布尔值和创建)
 在Kitware.mummy.Runtime.Methods.CreateWrappedObject(UInt32 mteStatus，UInt32 mteIndex，UInt32 rawRefCount，IntPtr rawCppThis，布尔值callDisposalMethod， 布尔值和找到)
 在Kitware.VTK.vtkObjectEventRelay.Execute(IntPtr调用方，UInt32 eventId，IntPtr callData)上
    at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageA(MSG& msg)
 在System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID， Int32原因，Int32 pvLoopData)
 在System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32原因，ApplicationContext上下文)中
 在System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32原因，ApplicationContext上下文)中

   在System.Windows.Forms.Application.RunDialog(窗体窗体)中

    at System.Windows.Forms.Form.ShowDialog(IWin32Window所有者)     在System.Windows.Forms.Form.ShowDialog() 

Unhandled Exception:  System.Exception: error: could not get registered type - mteIndex='4294967295' classNameKey='' 
   at Kitware.mummy.Runtime.Methods.GetConstructorInfo(UInt32 mteIndex) 
   at Kitware.mummy.Runtime.Methods.CreateWrappedObjectImpl(UInt32 mteStatus, UInt32 mteIndex, UInt32 rawRefCount, IntPtr rawCppThis, Boolean callDisposalMethod, Boolean& created) 
   at Kitware.mummy.Runtime.Methods.CreateWrappedObject(UInt32 mteStatus, UInt32 mteIndex, UInt32 rawRefCount, IntPtr rawCppThis, Boolean callDisposalMethod, Boolean& found) 
   at Kitware.VTK.vtkObjectEventRelay.Execute(IntPtr caller, UInt32 eventId, IntPtr callData) 
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageA(MSG& msg) 
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData) 
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) 
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) 
   at System.Windows.Forms.Application.RunDialog(Form form) 
   at System.Windows.Forms.Form.ShowDialog(IWin32Window owner) 
   at System.Windows.Forms.Form.ShowDialog() 

问候，

zlf

推荐答案

糟糕！ 该异常似乎是在初始化过程的早期发生的.特别是，表单刚刚被加载，并启动了一个消息循环.邮件已发送.最终:Kitware.mummy.Runtime.Methods.CreateWrappedObject 开始它的魔力并死亡.因为其中包含运行时"一词，所以它意味着动态加载正在进行中，当我们看到诸如"GetContructorInfo"之类的方法时，情况似乎就是如此.

Ouch!  This exception appears to be happening very early in the initialization process.  In particular the form just gets loaded, and starts up a message loop.  The message is dispatched.  Ulitimately: Kitware.mummy.Runtime.Methods.CreateWrappedObject starts it's magic and dies.  Because it contains the words Runtime, it implies there is dynamic loading going on which seems to be the case when we see a method such as "GetContructorInfo"..

我认为这段代码不是防弹的，该错误是CreateWrappedObject的责任，并且我看不到如何通过此错误获取....除非存在dll方面的问题，否则发生中.. 换句话说，以后需要DLL 在动态绑定中未加载或未找到.这可能是时间问题，但不确定.

It is my opinion that this code is not bullet-proof, the error is the responsibility of CreateWrappedObject and I do not see how you could get by this error....unless there is something dll-wise that isn't happening..  In other words a DLL needed later in the dynamic binding either isn't loaded or isn't found.  It could be a timing issue but am not sure.

这篇关于从UnsafeNativeMethods.DispatchMessageA引发的异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！