How to Successfully Integrate the Unirest C Library into Visual Studio 2012?

How to Integrate External Libraries into Visual Studio 2012

Including libraries into Visual Studio 2012 projects allows developers to leverage the functionality of external modules within their code. This question addresses the challenges faced while integrating the Unirest C library.

Adding Libraries to C Projects

Typically, including a library in Visual Studio requires completing several steps:

1. Include Header Files:

• Locate the library's header files and include them in your source code using #include statements. For example, for Unirest:

#include "UNIRest.h"

2. Add Include Directory:

• Set the include directory where the compiler will search for header files.
• In Visual Studio, navigate to "Configuration Properties" > "VC Directories" > "Include Directories" and add the library's include directory.

3. Add Library Directory:

• Specify the path to the library's *.lib files.
• Under "Configuration Properties" > "VC Directories" > "Library Directories", include the library's directory.

4. Link Libraries:

• Link the library's *.lib files by adding them to "Configuration Properties" > "Linker" > "Input" > "Additional Dependencies." For example:

unihttprequest.lib

5. Deploy DLLs:

• Place the library's *.dll files either in the executable directory or in Windows/system32 to ensure runtime availability.

Specific Error for Unirest

The compilation error mentioned in the question relates to the #import macro utilizadas in the Unirest library's header file. Visual Studio requires a type library or DLL to be loaded instead. To resolve this:

• Check that your project is using the correct target platform for the Unirest library.
• Ensure that the Unirest DLLs are present in your executable directory or Windows/system32.

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