Message from discussion
"Managed Debugging Assistant 'LoaderLock' has detected a problem in
From: "Greg Young" <druckdruckREMOVEgo...@hotmail.com>
References: <1149489172.672028.192690@i39g2000cwa.googlegroups.com> <#Pw8mlIiGHA.4368@TK2MSFTNGP03.phx.gbl> <1149578735.066326.291130@g10g2000cwb.googlegroups.com>
Subject: Re: "Managed Debugging Assistant 'LoaderLock' has detected a problem in
Date: Tue, 6 Jun 2006 17:25:26 -0400
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1) Turning it off is not the right way to handle it ... it can cause
seemingly random problems at runtime (i.e. app just hangs without ever
hitting your code on some machines) the code that is in there is not safe
...
2) There are examples up on the web (all over the place) .. just google on
control begininvoke .. basically you make a method that does the accessing
.. then you call control.invoke/begininvoke on the other thread causing it
to message the main thread to run your method (delegate)
<mo...@tek.com> wrote in message
news:1149578735.066326.291130@g10g2000cwb.googlegroups.com...
> Hi Greg,
>
> Thanks very much.
>
> Problem1:
> I am using some managed dll which will be calling the unmaged
> dll(tekSpy.dll).
> The unmanaged dll is calling win32 dll for doing code injection. i.e
> it will be accesing managed exe through hook process.
>
> Once I unchecked the Loder lock exception thrown option from
> Debug->Exceptions,I am not getting the messgae. But I am not sure that
> , this will be the permanent solution.
>
> Pls let me know your thoughts.
>
> Problem 2:
> I got your point. But I dont know how to call main form instance
> through control.invoke.
> Especially how to assign mainform instance to delegate?
>
> Thanks,
> Mohan
>
>
>
> Greg Young wrote:
>> Problem 1: Are you using any other dlls? Basically it is saying that the
>> TekSpyHook DLL is accessing another DLL in its DLLMain which is a big no
>> no.
>> Is this your own DLL or from somewhere else?
>>
>> Problem 2: You can only access controls on the thread that they were
>> created
>> on. You should be using Invoke/BeginInvoke in order to marshal operations
>> on
>> controls back to the main thread. If you do a google on VB.NET control
>> invoke (or begininvoke) you can find a ton of articles .. here is one
>> from
>> msdn mag
>> http://msdn.microsoft.com/msdnmag/issues/04/05/BasicInstincts/default.aspx.
>> Basically in 2.0 its alerting you that you have a threading problem where
>> as
>> it did not in 1.x.
>>
>> Cheers,
>>
>> Greg Young
>> MVP - C#
>> http://geekswithblogs.net/gyoung
>>
>> <mo...@tek.com> wrote in message
>> news:1149489172.672028.192690@i39g2000cwa.googlegroups.com...
>> > Hi all,
>> >
>> > I have ported my VB.Net project from VS2003 to VS2005. I am facing two
>> > issues while running my applications:
>> > Issue1:
>> > I am calling some managed dlls (developed in C#) from my Vb .net .
>> > Whne I
>> > debug the code,Iam getting the following Error message.
>> >
>> > "Managed Debugging Assistant 'LoaderLock' has detected a problem in
>> > 'F:\VBSource\bin\Debug\TekRobo.exe'.
>> > Additional Information: DLL 'F:\VBSource\bin\Debug\Tekspyhook.dll' is
>> > attempting managed execution inside OS Loader lock. Do not attempt to
>> > run managed code inside a DllMain or image initialization function
>> > since
>> > doing so can cause the application to hang."
>> >
>> > How to resolve the above error?
>> >
>> > i ssue2:
>> >
>> > I am calling mainform instance (static variable) from other VB .net
>> > modules
>> > from the same projects.In VS2003 ,I did not face any issues. But in
>> > VS2005 ,I
>> > am getting the following exception. P.s I am running the application
>> > under
>> > thread.
>> >
>> > "A first chance exception of type 'System.InvalidOperationException'
>> > occurred in System.Windows.Forms.dll
>> > Additional information: Cross-thread operation not valid: Control
>> > 'StressTest' accessed from a thread other than the thread it was
>> > created on."
>> >
>> > it would be greatful ,if any one help me to resolve the above two
>> > issues.
>> > Thanks
>> > Mohan
>> > Was this
>> >
>
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