如何在CLR c ++窗口窗体中调用c ++控制台项目中的函数？

I have two projects the first is c++ console application and the second is c++ CLR Empty project .I want to call function from the console and use it in CLR project .I tried to create header file , include it in CLR project and use #include "headername.h" and call the function render3d() but it gives me those linking errors .I have two projects the first is c++ console ap