windows下调用API显示操作系统版本

http://www.codesnippet.cn/detail/10112012251.html

package main

  

import (

    \"syscall\"

    \"unsafe\"

    \"strconv\"

)

  

type OSVERSIONINFO struct {

    dwOSVersionInfoSize int32

    dwMajorVersion int32

    dwMinorVersion int32

    dwBuildNumber int32

    dwPlatformId int32

    szCSDVersion [128]byte

}

  

func main(){

    ShowMessage(\"操作系统版本\",GetOsVersion());

  

}

  

func IntPtr(n int) uintptr {

    return uintptr(n);

}

  

func StrPtr(s string) uintptr {

    return uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(s)));

}

  

func ShowMessage(title string,text string) {

    user32 := syscall.NewLazyDLL(\"user32.dll\");

    MessageBoxW :=  user32.NewProc(\"MessageBoxW\");

    MessageBoxW.Call(IntPtr(0),StrPtr(text),StrPtr(title),IntPtr(0));

}

  

func GetOsVersion() string {

    var version string = \"Unknown Version\";

    kernel32 := syscall.NewLazyDLL(\"kernel32.dll\");

    var os OSVERSIONINFO;

    os.dwOSVersionInfoSize = int32(unsafe.Sizeof(os));

    GetVersionExA := kernel32.NewProc(\"GetVersionExA\");

    rt,_,_ := GetVersionExA.Call(uintptr(unsafe.Pointer(&os)));

    if int(rt)==1 {

        switch {

            case os.dwMajorVersion==4 && os.dwMinorVersion==0 && os.dwPlatformId==1:

                version = \"Windows 95\";

                break;

            case os.dwMajorVersion==4 && os.dwMinorVersion==10:

                version = \"Windows 98\";

                break;

            case os.dwMajorVersion==4 && os.dwMinorVersion==90:

                version = \"Windows Me\";

                break;

            case os.dwMajorVersion==4 && os.dwMinorVersion==0 && os.dwPlatformId==2:

                version = \"Windows NT4\";

                break;

            case os.dwMajorVersion==5 && os.dwMinorVersion==0:

                version = \"Windows 2000\";

                break;

            case os.dwMajorVersion==5 && os.dwMinorVersion==1:

                version = \"Windows XP\";

                break;

            case os.dwMajorVersion==5 && os.dwMinorVersion==2:

                version = \"Windows 2003\";

                break;

            case os.dwMajorVersion==6 && os.dwMinorVersion==0:

                version = \"Windows Vista\";

                break;

            default:

                version = \"Windows 7\";

                break;

        }

        version = version + \" Build(\"+strconv.FormatInt(int64(os.dwBuildNumber),10)+\") \" + string(os.szCSDVersion[0:]);

    }

    return version;

}

//该片段来自于http://www.codesnippet.cn/detail/10112012251.html