[Coin-discuss] List of Windows dll dependencies

Fri Jun 14 08:10:07 EDT 2019

Many thanks Matthieu,

Using the dependency walker to identify the missing .DLL solved the issue.
As a side note, we had to use the version for windows 10 from: https://github.com/lucasg/Dependencies

Best regards,
Pau

From: Bolt, Matthieu (ITCDOR) - KLM <Matthieu.Bolt at klm.com>
Sent: 07 June 2019 06:22
To: Juan Garcia, Pau <Pau.JuanGarcia at atkinsglobal.com>
Cc: Constantino, Carlos <Carlos.Constantino at atkinsglobal.com>; Allan, David F <David.Allan2 at atkinsglobal.com>; coin-discuss at list.coin-or.org
Subject: Re: List of Windows dll dependencies

Hi Pau,

It's not clear for me how you have build the CoinMp.dll, for example if build with visual studio you might also have to deploy the correct version of the c runtime (the same as the used for building the dll). If that doesn't help then you can also detect all dependencies on windows machines using http://www.dependencywalker.com/<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.dependencywalker.com_&d=DwMF-g&c=cUkzcZGZt-E3UgRE832-4A&r=1W7t1wxffF_SK8hWHbFqftFPxpkp7kvctLERQP_VVdU&m=mm-WcE8750GhSn-Qy9oXMEXuikHrMhJ9PXjSaZOmR2A&s=0VKJDPci8lI9gP-h_0vDrkmRbVA4hFWOlvkapsOGb5E&e=>

Best regards,

Matthieu

________________________________
Van: Coin-discuss <coin-discuss-bounces at coin-or.org<mailto:coin-discuss-bounces at coin-or.org>> namens Juan Garcia, Pau <Pau.JuanGarcia at atkinsglobal.com<mailto:Pau.JuanGarcia at atkinsglobal.com>>
Verzonden: donderdag 6 juni 2019 17:42
Aan: coin-discuss at list.coin-or.org<mailto:coin-discuss at list.coin-or.org>
CC: Constantino, Carlos; Allan, David F
Onderwerp: [Coin-discuss] List of Windows dll dependencies

Hello,

I am using the CoinMP.dll file compiled for windows in a python application. I use the ctypes library to load the dll as follows:

ctypes.cdll.LoadLibrary(CoinMP.dll)

The application is frozen into a executable file using PyInstaller. It woks just fine in most computers, but some users got an error when loading the dll:

OSError: [WinError 126] The specified module could not be found

I made sure the path provided to the loader is an absolute path, handled by the os.path library, and the CoinMP.dll is in the location. It seems the problem is that some .dll dependencies to load CoinMP.dll are not present in the user's machine.

Would it be possible to obtain a complete list of all the dependencies necessary to load CoinMP.dll?

Many thanks,

Pau

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