golang1.8使用cgo获取进程是否假死

package main

import (
"flag"
)

/*
#include <stdio.h>
#include <windows.h>
#include <Winuser.h>
typedef struct EnumFunArg
{
HWND      hWND;
DWORD    dwProcessId;
}EnumFunArg,*LPEnumFunArg;

BOOL CALLBACK lpEnumFunc(HWND hwnd, LPARAM lParam)
{
EnumFunArg  *pArg = (LPEnumFunArg)lParam;
DWORD  processId;
GetWindowThreadProcessId(hwnd, &processId);
if( processId == pArg->dwProcessId)
{
pArg->hWND = hwnd;
return FALSE;
}
return TRUE;
}

int ReturnWnd(DWORD processID)
{
BOOL re = FALSE;
EnumFunArg wi;
wi.dwProcessId = processID;
wi.hWND   =  NULL;
EnumWindows(lpEnumFunc,(LPARAM)&wi);
if(wi.hWND)
{
if (IsHungAppWindow(wi.hWND))
{
return 1;
}
}
else
{
return -1;
}
return 0;
}
*/
import "C"

func main() {
pid := flag.Int("p", 0, "-p 1001")
flag.Parse()
h := C.ReturnWnd(C.DWORD(*pid))
switch h {
case 0:
println("程序有响应")
case 1:
println("程序无响应")
case -1:
println("无法获取窗口")
}
}