Exception when closing window

[floele]

Hi,

I am currently evaluating the GdPicture library and got a problem with the GdViewer. When closing the window that contains an GdViewer control, a NullReferenceException occurs:

Code: Select all

   bei GdPicture.GdViewer.?(? ?, Double ?, Double ?, Double ?, Double ?, Boolean ?)
   bei GdPicture.GdViewer.?(Boolean ?, Boolean ?, Boolean ?, Boolean ?, Boolean ?, Boolean ?, Boolean ?, Boolean ?)
   bei GdPicture.GdViewer.CloseDocument(Boolean NoCLear)
   bei GdPicture.GdViewer.Dispose(Boolean disposing)
   bei System.ComponentModel.Component.Dispose()
   bei System.Windows.Forms.Integration.WindowsFormsHost.Dispose(Boolean disposing)
   bei System.Windows.Interop.HwndHost.WeakEventDispatcherShutdown.OnShutdownFinished(Object sender, EventArgs e)
   bei System.EventHandler.Invoke(Object sender, EventArgs e)
   bei System.Windows.Threading.Dispatcher.ShutdownImplInSecurityContext(Object state)
   bei System.Threading.ExecutionContext.runTryCode(Object userData)
   bei System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   bei System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   bei System.Windows.Threading.Dispatcher.ShutdownImpl()
   bei System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   bei System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   bei System.Windows.Threading.Dispatcher.Run()
   bei System.Windows.Application.RunDispatcher(Object ignore)
   bei System.Windows.Application.RunInternal(Window window)
   bei System.Windows.Application.Run(Window window)
   bei System.Windows.Application.Run()
   bei PdfSearcher.App.Main() in C:\Users\Administrator\documents\visual studio 2010\Projects\PdfSearcher\obj\x86\Debug\App.g.cs:Zeile 0.
   bei System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
   bei System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
   bei Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
   bei System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   bei System.Threading.ThreadHelper.ThreadStart()

I'm using .NET 4.0 and embedded the viewer control within a WindowsFormsHost. Other than the exception, it works fine so far. How can I fix this issue?

Best regards,
Florian

[Loïc]

Hi Florin,

Please send application reproducing the problem at https://www.gdpicture.com/support/getting-support-from-our-team
We need to be able to reproduce the problem.

With best regards,

Loïc