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Under Windows, you are required to use LoadLibrary("\path\your_dll.dll"), and then use GetProcAddress() to find the address of the function that you want to use in the library. Here is an example code where the DLL is under a different directory: File test3.cpp: ----------------------- #include <windows.h> #include <iostream> // Define a function pointer type for the SaySomething function typedef void (*SaySomethingFunc)(const char*); int main() { // Load the DLL HMODULE hModule = LoadLibrary("D:\\GitRepo\\cpp_tutorials\\shared_library2\\test\\shared_lib.dll"); if (!hModule) { std::cerr << "Failed to load the DLL" << std::endl; return 1; } // Get the function pointer for the SaySomething function SaySomethingFunc SaySomething = (SaySomethingFunc)GetProcAddress(hModule, "SaySomething"); if (!SaySomething) { std::cerr << "Failed to get the function address" << std::endl; FreeLibrary(hModule); return 1; } // Call the function SaySomething("Hello from the DLL!"); // Free the DLL when done FreeLibrary(hModule); return 0; } To compile: g++ test3.cpp -o test3.exe

I am using SSH to connect to a docker container. It's whatever convenient to me.

@@TommyNgo-SDEV isnt it difficult and slow productivity using VIM.

Thanks. Glad that you enjoyed it!

Glad it was helpful!

Thanks for subbing!

I think if you had created the static libraries for the previous steps, then the final step should compile without any issues. You might have mistyped something.

I think if Lenovo had a handbook of how things were assembled, then it would be easier. But like anything, don't use too much force, it will break.

In programming, there are many ways to get to the solution. This is one of the ways, and if you prefer a different way, then do it your way. If you code it correctly, style should not interfere with functionality and speed. Thanks for watching.

@@TommyNgo-SDEV Style is two solutions to follow the same path. This is more then style, because you invoked the copy constructor, and added stack space unnecessarily. In a larger class, this would eventually run into stack problems, if you do not make constants, constant. You launched unseen code.

​@@normbograham In the code that I have provided, I am not explicitly using the copy constructor. This is done by std::array class template. In many cases, the optimization is done by the compiler and Standard Template Library (STL), and so it will remove the unnecessary copies (if that is what you're worrying about). If this is a code review, I can go on for hours. Just remember that this video is more on the usage of popen().

The argument and upper-casing is important. Just copy this: g++ shared -o shared_lib.dll shared_lib.o -Wl,--out-implib,libshared_lib.a

@@TommyNgo-SDEV I have the same problem, I reinstalled the compiler, it didn't help. I have the most current version, but I couldn’t find a solution on the Internet. The working option is to assemble the dll in VisualStudio, but I would still like to configure it to work on VSCode.

@@Egor-sz2ez You really don't need to use Visual Studio. If you have issues with MingW, you can download TDM GCC: jmeubank.github.io/tdm-gcc/ . This should work, and VS Code should recognize it. The other option is to use Clang or LLVM. Here is a tutorial for Clang: ruclips.net/video/_xexe4yDwfQ/видео.html

I dont know if its the same problem as mine, but looks like its a something with powershell. I yried with cmd and worked

Thanks, and happy new year! Subscribe if you have not.

Relax. You just need to know how use npm to install the Yeoman Generator tool. You don't need to know Javascript.

@@TommyNgo-SDEV Oh okay. I am a system programming language lover. No web programming languages are installed in my machine. I found C3 as nice alternative to C. So I decided to create a syntax coloring plugin for that. That's all.

@@TommyNgo-SDEV Oh Okay. BTW, i need to install the JS echo system.

The current video shows the classic way to debug C++ program without VS Code or any GUI/IDE. With VS Code, you can debug C++ program using CodeLLDB as an extension, but unfortunately it's not covered in this video. In addition, you have to setup a configuration in VS Code to build and debug. Once it has been configured, then you can add break points and step through your code. Also, you can use the debug console to review variables, etc. This would be a different video when I have time to create it.

In this case, GDB is installed under Ubuntu and part of WSL, and so you can use it directly without a VS Code extension. I have not really need to install the VS Code extension since GDB is packaged with GCC compiler.

Wonderful. I created this video 3 years ago, and it is still useful. Subscribe if you have not, and thank you.

Not all the tools are installed, and so it would make your VM or container a lot smaller. There are advantages that I didn't really go through. For example, you can access the Linux partition from Windows and so you don't have to start VirtualBox or VMware to launch your Linux VM. You can launch Visual Studio Code editor within Linux subsystem to modify code, etc. Additionally, there is less overhead.

I am glad it helps. Subscribe if you have not, and thank you.

Sure. That is a couple of steps away. Here are the instructions: 1. From Visual Studio Code, click Ctrl + comma key to enter Settings tab. 2. Enter "Shell: Windows" in the Search Settings Bar and hit enter key. 3. Look for Terminal->Integrated->Default Profile Pull down menu. Note: That should be in the Features->Terminal section. 4. The default value might have been set to 'null'. Now, from the pull down menu, set it to 'Command Prompt'. 5. When you click on 'Terminal->New Terminal' option from Visual Studio Code, it should always default to 'cmd'. 6. Enjoy! Hope it helps. Remember to subscribe and press like.

Glad it helped!

The answer is that I have been programming since age 16, and more than 25 years of professional programming experience. I am not a beginner SE. Clang is everywhere in the macOS and Linux world, and I ran across this compiler a few times in my life. But like many people, I often used the GCC toolchain instead. It is just a preference of what you want to do. Like any of the tutorials, I have tried reusing source code, and this one is from a previous tutorial (C++ DLL for VB6) ruclips.net/video/DDzsX94kQ84/видео.html. The __stdcall just ensures that the functions are called correctly between modules (especially between C++ and VB6). One other comment is that I did have Visual Studio 2022 installed before this tutorial. Some of the warnings were mostly about the use of strcpy(), but I am using std::strcpy() which should be a little bit safer than the old primitive C version. Anyhow, I just want to give you an idea of how it should work, and you take this example for your own personal project. You should always define the import/export macro to properly expose the functions in the DLL for other programs to see. You can review my previous tutorials, and I have shown the usage of dumpbin to see if the DLL has been properly created.

25 years! That's crazy, you must had it at this point hahah. I can't envy you enough! I always wanted to become a programmer from my childhood days but my life circumstances were different back then and now I'm 31 and my life circumstances changed in a way that allowed me to finally get going and start learn how to become one! I truly do albeit me hitting the wall many times wanting to give up and sometimes my thoughts get to my head and start saying maybe it's late for me to catch up and then who will even think to hire me anyway with no computer degree, lack of experience, maybe already old? and this kinda stuff. Thankfully though I'm still pushing or at least I'm trying and most of such times when I get into a problem or an error and stuff I keep search for a solution and for the majority I do find one eventually. But this one by far was waaaay there and it was litterally trying to killing me literally hahaha and I was this close to just stop do the whole thing. Anyways, thank you again for you putting the video and true effort to it and teaching me how it can be done with Clang! will always be thankful to you my friend :). My sub to you is already paying off, you see? ;). PS: I didn't know that Clang is also popular in other platforms like Linux and osx!, I thought gcc what makes the majority of it! bsshhh mind blowing. I have tried GCC before but the reason why I stuck with Clang toolchain I guess is because first their integration-ready with VS and probably because since I'm 100% windows user, they use the default windows runtime libraries out of the box thus more compatibility in general with windows than others, or at least that what I've understood. @@TommyNgo-SDEV

@@aamg9586 Yes. You have a mindset of SE/programmer. Keep it up and it will lead you to some good place. It's never too late to become a programmer or developer. I am always busy with my job with different projects, etc. and so this is a sort of a way to give back to the community. When I get a chance, I will produce a video in the hope that it will help someone. Thanks for subscribing.

Keep it up too my friend. Thanks for the nice words, I will try by best :_)@@TommyNgo-SDEV

I think I understand your question. Correct me if I am wrong, but you wanted to create a DLL using Clang (not using g++). In addition, you want to preserve the same compilation arguments as much as possible. When I get a chance this weekend, I will make a tutorial for you, and this will be for Windows. In one condition though...please make sure to subscribe to this channel to get the latest notification.

@@TommyNgo-SDEV Thanks sir, I truly appreciate it. You can't imagine how much this's going to help me in my small project!. Okay deal! I have just did and you deserve it :D

​@@TommyNgo-SDEVYes exactly. if you just could do the same as the video but using Llvm clang.

You should type 'Files: Encoding' in the 'Setting' option in Visual Studio Code. BTW, UTF-8 is the default encoding and is a superset of multibyte character sets. Not sure why it would not compile in your case.

I am creating tutorials and not working on homework assignments. Did you created the SDK?

Visual C++ should be able to use the DLL generated by MingW32/64. I will create a video to show you how to do this. Please make sure to subscribe to my channel so that you can watch it when the video is ready.

@@TommyNgo-SDEV Subscribed.Thanks a lot

@@李舜生-i6s Enjoy. This is the link to the new video: ruclips.net/video/xBy0rsY9ZHo/видео.html.