go 对windows api的调用

package main

import (

   "syscall"

)

func abort(funcname string, err string) {

   panic(funcname + " failed: "+err)

}

func print_version(v uint32) {

   major := byte(v)

   minor := uint8(v >> 8)

   build := uint16(v >> 16)

   print("windows version ", major, ".", minor, " (Build ", build, ")\n")

}

func main() {

   h, err := syscall.LoadLibrary("kernel32.dll")

   if err!=nil {

      abort("LoadLibrary", err.Error())

   }

   defer syscall.FreeLibrary(h)

   proc, err := syscall.GetProcAddress(h, "GetVersion")

   if err!=nil {

      abort("GetProcAddress", err.Error())

   }

   r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0,0)

   print_version(uint32(r))

}

//windows 7下调试通过

// 附 一个go站 http://golangwiki.org

//附 error 定义

type error interface {
	Error() string
}