Re: LibraryLoader loads wrong DLL

Hi,

I found a solution to the problem. I use SetDllDirectory
(http://msdn.microsoft.com/en-us/library/windows/desktop/ms686203(v=vs.85).aspx)
with the path to my interface.dll before trying to load it or run
ctypesgen. After loading I set it back to default using
SetDllDirectory(NULL).

Thor Andreas

On Wed, Mar 14, 2012 at 10:26 AM, Thor Andreas Tangen <[email protected]> wrote:
> Hi,
>
> Thanks for the link. I have tried using my interface in a C-program,
> and there the loading is correct, so why is the loading different
> there from what is done in ctypes? How are the search directories set
> in ctypes?
>
> I'll try the trick you propose and see if its a workaround
>
> Thanks,
> Thor Andreas
>
> On Wed, Mar 14, 2012 at 10:07 AM, Thomas Heller <[email protected]> wrote:
>> Am 14.03.2012 09:31, schrieb Thor Andreas Tangen:
>>> Hi
>>>
>>> I have a DLL, lets call it interface.dll, which wraps a C++ API. This
>>> C++ API depends on another API located in console.dll. This
>>> console.dll is shipped with the C++ API and is specific to this API,
>>> i.e. the people who has made the API also made the console.dll. Both
>>> the console.dll and the C++ API DLL is located in the same folder as
>>> my interface.dll. But when using
>>> ctypes.cdll.LoadLibrary("interface.dll") the loading fails. The error
>>> reported is that a ceratin function cannot be found in the
>>> console.dll. Using DependencyWalker to profile the loading of the
>>> interface.dll I discovered that the LoadLibrary folder tries to load
>>> console.dll found in C:\Windows\system32 instead of the console.dll
>>> found in the same folder as interface.dll.
>>>
>>> Is this the wanted behaviour? Is there a way I can "help" the
>>> LibraryLoader to find the right DLL?
>>
>> The strategy that LoadLibrary uses to find a dll is explained in the
>> MSDN docs:
>>
>> http://msdn.microsoft.com/en-us/library/windows/desktop/ms684175%28v=vs.85%29.aspx
>>
>> Probably you should call LoadLibrary("console.dll"), maybe with the full
>> path, before LoadLibrary("interface.dll").
>>
>> Thomas
>>
>>
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------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing 
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/