dllimport Questions

7

Solved

Every few months I find myself needing to call Win32 from C#. Though I've done it a dozen times, I've usually forgotten the exact machinations, so I poke around the web or old code and figure out w...
Worcester asked 21/10, 2009 at 2:30

4

I'm attempting to import a c# module into Python using python.NET under Anaconda This has been installed using pip install pythonnet which reported "Successfully installed pythonnet-2.5.2&quot...
Romanic asked 16/4, 2021 at 9:12

5

Solved

I have a python script that previously worked but that now throws the error:ImportError: DLL load failed while importing _gdal: The specified module could not be found. I am trying to upload a shap...
Nombles asked 3/3, 2022 at 22:59

12

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In fact, I got a C++ (working) DLL that I want to import into my C# project to call it's functions. It does work when I specify the full path to the DLL, like this : string str = "C:\\Users\\user...
Enrollment asked 12/1, 2012 at 13:45

5

An import error occurs when trying to run jupyter notebook I'm trying to run jupyter notebook using anaconda (git bash platform), and as I type in jupyter notebook, an import error occurs every ti...
Chantalchantalle asked 16/1, 2019 at 20:35

30

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I have installed PyQt5 on windows platform and and getting an importError: DLL load failed. I have installed pyqt5 using the command pip3 install pyqt5 Successfully installed pyqt5-5.8.1 My P...
Group asked 17/3, 2017 at 17:14

1

Trying to find any currently active timers that are still pending that may cause the computer to wake-up. When the timer is created, a name is specified. A list of all named timers would be ideal, ...
Villosity asked 26/6, 2017 at 2:36

10

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Here is the situation, I'm using a C based dll in my dot.net application. There are 2 dlls, one is 32bit called MyDll32.dll and the other is a 64bit version called MyDll64.dll. There is a static v...
Baseman asked 1/6, 2012 at 14:56

4

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Is there a way to specify the paths to be searched for a given assembly that is imported with DllImport? [DllImport("MyDll.dll")] static extern void Func(); This will search for the dll in the a...
Televisor asked 19/5, 2010 at 10:34

3

I am trying to load a library(say ArithmeticOprn.dylib) dynamically and call the methods presented within that library. Please refer to the sample code snippet from below, [DllImport("libdl.dylib"...
Greensward asked 23/11, 2018 at 11:54

12

I have a DLL (FreeType) which is certainly 32-bit (header: IMAGE_FILE_MACHINE_I386). I want to use it from C# code, using DllImport. Target of my application is x86, IntPtr.Size is 4, process is ...
Calyptrogen asked 28/4, 2010 at 10:20

3

I have the following code: [UnmanagedFunctionPointer(CallingConvention.Cdecl)] public delegate void PanicFuncDelegate(string str, IntPtr args); private void PanicFunc(string str, IntPtr args) { ...
Wraith asked 2/8, 2017 at 14:19

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I have a dll which comes from a third party, which was written in C++. Here is some information that comes from the dll documentation: //start documentation RECO_DATA{ wchar_t Surname[200]; wchar...
Perennate asked 17/3, 2009 at 6:26

4

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We are writing a code to do on-demand scan of a file from C# using Windows Defender APIs. [DllImport(@"C:\Program Files\Windows Defender\MpClient.dll")] public static extern int WDStatus(out boo...
Crescentic asked 30/11, 2016 at 12:51

0

I have written a small program that generates a system tray icon that can play radio streams from a handfull of stations. It is running well for a year now and I tried to update the code and also t...
Son asked 1/2, 2022 at 7:50

2

Build OS: Windows 10, Cmake 3.16.3. I use target_link_libraries to link 3rd party .lib file to my .dll library. But when I use GET_RUNTIME_DEPENDENCIES to install my dll, there is no dependency...
Ascocarp asked 3/2, 2020 at 11:34

4

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I have an existing app which P/Invokes to a DLL residing in the same directory as the app itself. Now (due to the fact that Canon produces one of the crappiest API's around) I need to support two ...
Tynes asked 9/3, 2010 at 19:0

1

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I have asked this questions today, but it was falsely closed and I have no option to re-open it. Therefore, I have to ask it again. I have a class that has a long list of definitions like these: [D...
Pendley asked 13/11, 2021 at 21:57

3

System specifications: Python==3.8.5 tensorflow==2.3.1 I am trying to import tensorflow... but I am getting import error. Please help me rectify the problem. I tried following... pip uninstall te...
Burkhart asked 21/11, 2020 at 14:19

1

I am trying to auto update Cython .so modules that my python program uses on the fly. After I download the new module and del module and import module Python seems to still be importing the older v...
Apanage asked 25/1, 2020 at 3:37

2

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In a project using a server.dll and a client.exe, I have dllexported a server symbol from the server dll, and not dllimported it into the client exe. Still, the application links, and starts, with...
Bobbyebobbysocks asked 20/12, 2010 at 12:3

3

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This is basically the same question as [SO]: C2491: 'std::numpunct<_Elem>::id' : definition of dllimport static data member not allowed [closed], but considering the following facts: That (on ...
Stria asked 10/2, 2018 at 1:8

2

I want to define a derived class based on a dll exported class. The base class is defined in Project A, and the derived class is in Project B. Firstly, in Project A, preprocessor MYDLL_BUILD is d...
Adamo asked 17/3, 2012 at 4:19

2

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I found a lot of questions about it, but no one explains how I can use this. I have this: using System; using System.Collections.Generic; using System.Linq; using System.Runtime.InteropServices; ...
Gannon asked 18/10, 2013 at 13:22

1

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I just encountered with strange behaviour of DllImport in C#, which I can't explain. I want to know how It is possible and where I can read about It. Case is that via DllImport one can call functio...
Chloroform asked 12/3, 2021 at 8:22

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