I am trying to install fmtlib and I have downloaded the zip folder and extracted it, what do I do next to use it in my Visual Studio 2022 project? Because it's my first time installing an external library. Im using windows 10.
Once you have downloaded and extracted the fmtlib, Open Visual Studio and create new project New Project -> Console App
replace the application file where main method is present with below code.
First line (#define FMT_HEADER_ONLY) is mandatory, which tells compiler to compile fmt header file also.
#define FMT_HEADER_ONLY
#include <iostream>
#include <fmt/color.h>
int main()
{
std::cout << "Hello World!\n";
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
}
Go to Properties of project Properties, and click on dropdown of Include Directories as shown in screenshot.
Click on New Line folder Folder Icon and click on line to edit and browse folder path of include directory (C:\Users\username\Downloads\fmt-8.1.0\fmt-8.1.0\include)Browse till include directory of fmt lib.
Cross check the path is added Confirm.
Now build the Project and Execute code. Colorful Text Output
Happy Coding!
First, you have to build the lib with CMake, then you will get the .lib files.
Then you simply add the Header files in the include folder to your project in Visual Studio and link the .lib files to your project like here described:
How to add additional libraries to Visual Studio project?
I believe fmtlib is header only. You can just add the unzipped folder to your includes.
If you enable C++ latest as your C++ Language Standard (latest) in properties, C++, language, you don't need fmtlib.
Related
I am using Microsoft Visual Studio Community 2019 Version 16.8.4 on a Windows 10 machine.
I have established that my include files live in "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\include" because I can actually see them listed there. However, I get an error with the line #include <cstdio>.
I have tried right click on project name to bring up a context from which I chose 'Properties'. From the "Solution Project1 Property Pages", I selected "Debug Source Files" and then entered the full directory path to the include files.
I still get the error
You need to add the directory where the headers are found to the project properties under either C/C++ -> Additional include directories or VC++ -> Include directories.
And note that you need to make sure that the directory is added for all project configurations/platforms you wish to be able to build. The Debug source files item is only so that files can be found when running the debugger and have nothing to do with the project build stage.
I ran Visual Studio Installer and noted that one of the workloads, 'Desktop development with C++' had not been activated. After activating it and downloading the required or missing binaries, I am now able to create an empty project using an example of the quintessential 'Hello World' program such as #include int main(){printf("Hello, world");return 0;}
#include <cstdio> is part of the C++ Standard Library headers, if you are getting the error E1696: 'cannot open source file, you might have to retarget the solution/project. Do the following:
Right-click the Solution in the Solution Explorer pane;
Retarget solution;
Follow the steps/press OK.
It worked for me when I couldn't find Standard Library headers, hopefully, it works for you as well.
I downloaded the xlnt library for working with Excel - https://github.com/tfussell/xlnt. Can you please tell me what to do with it further? Honestly, I still can’t understand how among all the files there are in the downloaded archive, and there are 100 of them .hpp and .cpp files, what should I do with them?
1)As far as I understand, they need to be processed by the Cmake program and it seems that the output should appear .lib file, but I absolutely can’t understand how to do it or maybe something else
2)Or how can they be directly processed by Visual Studio 2017?
PS:When I launch Smack, I select the Source folder, the Cmake generates many incomprehensible files, but among them there is not one file with the .lib extension.
Help me please.
With CMake you can obtain the visual studio 2017 project files
and then compile the xlnt library.
Unzip the archive file
Within the xlnt folder, create a new directory and call it build
Launche CMake (GUI)
Browse for the source code folder
Browse for the build folder xlnt/build
With the Configure button select the tool (IDE/compiler) that you want to use
Pressing the Generate button, CMake will generate (inside the build folder)
the visual studio 2017 project files you need to compile the xlnt library
Building the solution, VS 2017 produces the xlnt.lib, xlnt.exp and xlnt.dll files.
The source path you see in the CMake screenshot is incorrect. You must specify the path that contains the "top level" CMakeLists.txt file.
The correct directory is: C:/Users/Zver/source/repos/XLNT Library/xlnt-master.
The CMakeLists.txt file in the above directory tells CMake all necessary subdirectories.
At this point you will see the static compilation option of the library appear.
If you use the MinGW/GCC compiler you must prevent the path from containing empty spaces.
Then you need to rename the directory from "XLNT Library" to "XLNTLibrary". At this point the path would become:
C:/Users/Zver/source/repos/XLNTLibrary/xlnt-master.
I'm using a library for image processing called Cimg. The library is stored in a single .h file (cimg.h).
I need to create several Visual Studio solutions(one solution for each exercise).
Where can I put this file globally so that I don't have to copy it to the Visual Studio solution each time?
You can put your header file anywhere you want, then add that folder as additional include directory for your visual studio project: Right click your project in the solution explorer, then:
Configuration properties->C/C++->General->Additional Include Directories
Just add the path there, and you can simply include CImg.h by:
#include <CImg.h>
Following instructions on http://docs.gstreamer.com/display/GstSDK/Installing+on+Windows to install GStreamer and compile tutorials/examples on Windows 7, for compilation using Visual Studio 2010.
After installing the SDKs, I try to compile the "hello world" example...
Cannot open include file: 'gst/gst.h': No such file or directory.
Odd - the tutorials were supposedly configured with the paths to these files. Nevertheless, we can manually add them...
Add C:\gstreamer-sdk\0.10\x86\include\gstreamer-0.10 to project include directories
Cannot open include file: 'glib.h': No such file or directory
Add C:\gstreamer-sdk\0.10\x86\include\glib-2.0 to project include directories
Cannot open include file: 'glibconfig.h': No such file or directory
At this point it seems to be a dead-end, as there isn't a glibconfig.h file anywhere on PC.
Was some step missing from the gstreamer documents?
p.s. I see a similar question, but its accepted answer seems to be a dead-link.
This question was posted on 2014. However, for everyone that needs to install Gstreamer on Visual Studio , I am explaining how you configure your library on Windows.
First of you need to download the library from https://gstreamer.freedesktop.org/data/pkg/windows/
You need to download and install both installers for developers and non-developers.
For instance for 1.14 it is the now latest version,
gstreamer-1.0-devel-x86-1.14.1.msi
gstreamer-1.0-x86-1.14.1.msi
You will install and setup both of them in the same directory like C:\gstreamer. (I guess gstreamer automatically adds its /bin to the Path environment. If not just ask it.)
After that you will open your Visual Studio. Create your C++ project. Create your main.cpp file. Right click on your project and click properties.
We need to do 3 steps:
Include the necessary directory paths.
Define the where the .lib paths are.
Specify which .libs you want to use.
After clicking properties:
C/C++ -> Additional Include Directories -> define your include paths such as
C:\gstreamer\1.0\x86_64\lib\glib-2.0\include;C:\gstreamer\1.0\x86_64\include\gstreamer-1.0;C:\gstreamer\1.0\x86_64\include\glib-2.0\;C:\gstreamer\1.0\x86_64\include\glib-2.0\glib;%(AdditionalIncludeDirectories)
Linker -> General -> Adding Library Directories -> write your lib directory path such as
C:\gstreamer\1.0\x86_64\lib;%(AdditionalLibraryDirectories)
Linker -> Input -> Additional Dependencies -> Write your .lib files you want to use such as
gobject-2.0.lib;glib-2.0.lib;gstreamer-1.0.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)
gobject-2.0.lib;glib-2.0.lib;gstreamer-1.0.lib are the ones we added, others are done by default.
That's all. You can just write in your main.cpp file
#include <gst/gst.h> and use your GStreamer Library
I think this will work for almost all libraries.
(1) Install Windows Driver Development Kit
(2) When creating new projects, use the "gstreamer" template in Visual Studio, rather than the "Windows application" template. Then it doesn't need anything changing in the include/linker settings to make #include <gst/gst.h> work properly.
The standard gstreamer installation on windows has a glibconfig.h located in: (assuming your gstreamer installation is in C:\gstreamer) C:\gstreamer\1.0\x86_64\lib\glib-2.0\include
The official way is using the "Property Sheet" feature of Visual Studio.
In Visual Studio, click View→Property Manager or View→Other Windows→Property Manager on the menu bar.
Click Property Manager tab near the Solution Explorer.
Right click your project name and choose Add Existing Property Sheet..., and navigate to %GSTREAMER_ROOT_X86%\share\vs\2010\libs and load gstreamer-1.0.props.
This will add Addittional Include Directories, Addittional Libraries Directories and Additional Dependencies to your Project Properties.
Build your project.
Sources:
Creating new projects manually:
https://gstreamer.freedesktop.org/documentation/installing/on-windows.html?gi-language=c#creating-new-projects-manually
Share or reuse Visual Studio project settings:
https://learn.microsoft.com/en-us/cpp/build/create-reusable-property-configurations
Hello
i do not use c++ but i try to make a simple dll in c++ by usin Microsoft visual studio 2008 this my steps
1-new project
2-select win32 and chose win32 project
3- from the win Application Wizard i chose Dll and in Additional Option i celect Empty Project
4-right click "Source Files" and add new item
5- chose c++ file(.cpp)
6- in this file i write this code
#include <windows.h>
__declspec(dllexport) int ss()
{
return 5;
}
7-Build the project >> Build Succeeded
but there is no dll file
what is the wrong ??
Thanks in advance.
Where are you checking for the .dll output? By default it outputs to the Solution (NOT Project) debug/release folder.
If you are new to .dll building in Visual Studio I would suggest starting a project in a similar manner but NOT selecting empty project, and selecting 'exports symbols'. By doing this Visual Studio will generate an example file that shows you a good notation for defining exports.
Before you compile make sure you set up the buildconfiguration to "Release" and you have to save the whole project somewhere before you compile, otherwise it's located in a temp-folder. After you saved it, compile it and look inside the projectfolder. There should be a folder named "bin" with subfolders. Look inside those subfolders and you should find your dll!