text: #pragma once
  
  #ifndef WIN32_LEAN_AND_MEAN
  #define WIN32_LEAN_AND_MEAN
  #endif
  #include <windows.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
    void* dlopen(const char* filename, int flag);
    char* dlerror(void);
    void* dlsym(void* handle, const char* symbol);
    int dlclose(void* handle);
  #ifdef __cplusplus
  }
  #endif
  