<mo...@tek.com> wrote in message

> 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

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....
> 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

<mo...@tek.com> wrote in message

> 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....
>> 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