OverLappedIO
#pragma once
#include
#include
#include
using namespace std;
int main(int argc,char **argv)
{
HANDLE hf = CreateFile(
"c:\\test.txt",
GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
NULL);
if(hf == INVALID_HANDLE_VALUE)
{
std::cout<<"invalid handle"<