Can't find header file in .lib

Question

I'm working with an Mcp2221, a chip for USB to I2C.

On the Microchip website is a dll to work with the Mcp2221 https://www.microchip.com/wwwproducts/en/MCP2221 I have downloaded the "MCP2221 DLL (v2.2.1)"

In the downloaded zip under unmanaged => lib I copied the mcp2221_dll_um_x64.lib to the directory D:\\createJNIDll

MCP2221 DLL (v2.2.1)\\unmanaged\\lib\\ content:

D:\\createJNIDll\\ content:

Now I working with Code::Blocks.
I created a new Project and in this Project a file named "main.cpp"

Under Settings => Compiler => Search directories I have added "D:\\createJNIDll\\" to Compiler and Linker.

Under Rightclick on my Project => Build options => Linker settings I have added "D:\\createJNIDll\\mcp2221_dll_um_x64.lib"

My main.cpp looks like this:

#include "mcp2221_dll_um.h"
#include <iostream>

int main(){
    wchar_t* res;
    int i = Mcp2221_GetLibraryVersion(res);
    std::cout << i << ": " << res << std::endl;
}

When I try to build and run the Project I get the Error:

fatal error: mcp2221_dll_um.h: No such file or directory

In the lib directory is a mcp2221_dll_um.h file as you can see in the picture above. So I expected that this header is in the .lib but I'm not 100% sure.

Can anybody help me to fix this problem that I can use the .lib in my project?

Answer 1

So I expected that this header is in the .lib but I'm not 100% sure

What gave you that idea?

The header is a file on disk. You've pointed the linker to the .lib file, but the compiler has no idea where to look for the header. Add that location to your include directories.