package main   
  
import (  
  "syscall"
  "unsafe"   
)  
  
func main(){  
    h, err := syscall.LoadLibrary("DllTest.dll")  
    if err != nil {  
      abort("LoadLibrary", err)  
    }  
  defer syscall.FreeLibrary(h)  
  proc, err := syscall.GetProcAddress(h, "SomeFunction")  
  if err != nil {  
    abort("GetProcAddress", err)  
  }  
  var str = "31231"
  r, _, _ := syscall.Syscall(uintptr(proc), 1, uintptr(unsafe.Pointer(&str)), 0, 0)  
  print_version(uint32(r))  
}  
  
func abort(funcname string, err error) {  
  panic(funcname + " failed: " + err.Error())  
}  
  
func print_version(v uint32) {  
    major := byte(v)  
    minor := uint8(v >> 8)  
    build := uint16(v >> 16)  
    print("windows version ", major, ".", minor, " (Build ", build, ")\n")  
}