[IronPython] Calling a System DLL In IronPython?

[Michael Foord]

On 25/01/2010 21:23, Shri Borde wrote:
> Its in Samples.zip on http://ironpython.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=12482. There have been a few bug fixes since that are not in Samples.zip, but it does not affect pinvoke.
>
>    

Great - thanks. For what it's worth it is worth running a tool like 
pyflakes over clrtype.py. I'm using a version that is possibly slightly 
outdated in a Silverlight project and pyflakes gives several warnings on 
clrtype.py (including a warning about an incorrectly constructed assert):

modules/clrtype.py:21: 'Char' imported but unused
modules/clrtype.py:21: 'Boolean' imported but unused
modules/clrtype.py:27: 'NameType' imported but unused
modules/clrtype.py:28: 'ReflectedProperty' imported but unused
modules/clrtype.py:182: local variable 'p' is assigned to but never used
modules/clrtype.py:354: local variable 'p' is assigned to but never used

(I have already fixed the assert manually I believe.)

All the best,

Michael
> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
> Sent: Sunday, January 24, 2010 4:19 AM
> To: Discussion of IronPython
> Cc: users at lists.ironpython.com
> Subject: Re: [IronPython] Calling a System DLL In IronPython?
>
> For ctypes you should use the documentation that is part of the Python
> documentation. For PInvoke the references will be mainly for C#.
>
> Does anyone have examples of using PInvoke with clrtype and IronPython
> 2.6?
>
> Michael
>
>
> --
> http://www.ironpythoninaction.com
>
> On 24 Jan 2010, at 03:24, David McWright<david.mcwright at usbfmi.com>
> wrote:
>
>    
>> Is there a reference somewhere for PInvoke or ctypes in IP?
>>
>> TIA,
>> David
>>
>> On Jan 23, 7:31 pm, Michael Foord<fuzzy... at voidspace.org.uk>  wrote:
>>      
>>> On 24/01/2010 00:19, Andrew Evans wrote:
>>>
>>>        
>>>> I am trying to call user32.dll into IronPython how do I do this?
>>>> Do I
>>>> use clr.AddReference, that doesn't seem to do it.
>>>>          
>>> clr.AddReference only works for .NET assemblies. user32.dll is not a
>>> .NET assembly. To use it you will either need PInvoke or ctypes that
>>> comes with IronPython 2.6.
>>>
>>> PInvoke relies on .NET attributes. It used to be the case that you
>>> couldn't use these directly with IronPython but needed a simple C#
>>> wrapper. The following article shows how to call into user32.dll
>>> using a
>>> C# wrapper:
>>>
>>>       http://www.voidspace.org.uk/ironpython/winforms/part10.shtml
>>>
>>> Alternatively you can try clrtype.py that comes with IronPython 2.6.
>>>
>>> All the best,
>>>
>>> Michael Foord
>>>
>>>
>>>
>>>        
>>>> Suggestions
>>>>          
>>>        
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READ CAREFULLY. By accepting and reading this email you agree, on behalf of your employer, to release me from all obligations and waivers arising from any and all NON-NEGOTIATED agreements, licenses, terms-of-service, shrinkwrap, clickwrap, browsewrap, confidentiality, non-disclosure, non-compete and acceptable use policies (”BOGUS AGREEMENTS”) that I have entered into with your employer, its partners, licensors, agents and assigns, in perpetuity, without prejudice to my ongoing rights and privileges. You further represent that you have the authority to release me from any BOGUS AGREEMENTS on behalf of your employer.