监测局域网共享文件夹下增加文件，修改文件

在项目中用到一个检测共享文件夹下新增图像，获取新增图像进行图像分类，下面代码监测共享文件下新图像的添加，读取新增图像进行路径，进行或许对图像操作。

#include "stdafx.h"
 #include "iostream"
 #include 
#include 
#include 
#include 
#include "stdio.h"
#pragma comment(lib, "Mpr.lib")
 using namespace std;
int _tmain(int argc, TCHAR **argv)
{
	TCHAR szPasswd[] = TEXT("90523");          //共享资源授权用户的密码
	TCHAR szUserName[] = TEXT("Administrator");        //共享资源授权的用户
	NETRESOURCE net_Resource;
	net_Resource.dwDisplayType = RESOURCEDISPLAYTYPE_DIRECTORY;
	net_Resource.dwScope = RESOURCE_CONNECTED;
	net_Resource.dwType = RESOURCETYPE_ANY;
	net_Resource.dwUsage = 0;
	net_Resource.lpComment = TEXT("");
	net_Resource.lpLocalName = TEXT("z:");  //映射成本地驱动器z:
	net_Resource.lpProvider = NULL;
	net_Resource.lpRemoteName = TEXT("\\\\192.168.3.168\\testShare”); // \\servername\共享资源名
	DWORD dwFlags = CONNECT_UPDATE_PROFILE;

	WNetCancelConnection2(net_Resource.lpLocalName, CONNECT_UPDATE_PROFILE, TRUE);

	return 1;

	DWORD dw = WNetAddConnection2(&net_Resource, szPasswd, szUserName, dwFlags);

switch (dw)
{
	case ERROR_SUCCESS:
		ShellExecute(NULL, TEXT("open"), TEXT("z:"), NULL, NULL, SW_SHOWNORMAL);
		break;
	case ERROR_ACCESS_DENIED:
		wprintf(TEXT("没有权访问！"));
		break;
	case ERROR_ALREADY_ASSIGNED:
		ShellExecute(NULL, TEXT("open"), TEXT("z:"), NULL, NULL, SW_SHOWNORMAL);
		break;
	case ERROR_INVALID_ADDRESS:
		wprintf(TEXT("IP地址无效"));
		break;
	case ERROR_NO_NETWORK:
		wprintf(TEXT("网络不可达!"));
		break;
}

  	 fileWatcher();

	return 0;

}



void fileWatcher()

{
	DWORD cbBytes;
    char file_name[MAX_PATH]; //设置文件名;
    char file_rename[MAX_PATH]; //设置文件重命名后的名字;
    char notify[1024];
    int count = 0; //文件数量。可能同时拷贝、删除多个文件，可以进行更友好的提示;
    TCHAR *dir = _T(“\\\\192.168.3.168\\testShare”);
    HANDLE dirHandle = CreateFile(dir,
        GENERIC_READ | GENERIC_WRITE | FILE_LIST_DIRECTORY,
        FILE_SHARE_READ | FILE_SHARE_WRITE,
        NULL,
        OPEN_EXISTING,
        FILE_FLAG_BACKUP_SEMANTICS,
        NULL);
    if (dirHandle == INVALID_HANDLE_VALUE) //若网络重定向或目标文件系统不支持该操作，函数失败，同时调用GetLastError()返回ERROR_INVALID_FUNCTION

    {
        cout << "error" + GetLastError() << endl;
    }
    memset(notify, 0, strlen(notify));
    FILE_NOTIFY_INFORMATION *pnotify = (FILE_NOTIFY_INFORMATION*)notify;
    cout << "Start Monitor..." << endl;
    while (true)
    {
        if (ReadDirectoryChangesW(dirHandle, &notify, 1024, true,

            FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_DIR_NAME | FILE_NOTIFY_CHANGE_SIZE,
            &cbBytes, NULL, NULL))
        {
            //转换文件名为多字节字符串;
            if (pnotify->FileName)
            {
                memset(file_name, 0, strlen(file_name));
                WideCharToMultiByte(CP_ACP, 0, pnotify->FileName, pnotify->FileNameLength / 2, file_name, 99, NULL, NULL);
            }
            //获取重命名的文件名;
            if (pnotify->NextEntryOffset != 0 && (pnotify->FileNameLength > 0 && pnotify->FileNameLength < MAX_PATH))
            {
                PFILE_NOTIFY_INFORMATION p = (PFILE_NOTIFY_INFORMATION)((char*)pnotify + pnotify->NextEntryOffset);

                memset(file_rename, 0, sizeof(file_rename));

                WideCharToMultiByte(CP_ACP, 0, p->FileName, p->FileNameLength / 2, file_rename, 99, NULL, NULL);
            }
            //设置类型过滤器,监听文件创建、更改、删除、重命名等;
            switch (pnotify->Action)
            {
                case FILE_ACTION_ADDED:
                    count++;
                    cout << "count  = " << count << endl;
                    cout << setw(5) << "file add:" << setw(5) << file_name << endl;
                    break;
                case FILE_ACTION_MODIFIED:
                    cout << "file modified:" << setw(5) << file_name << endl;
                    break;
                case FILE_ACTION_REMOVED:
                    count++;
                    cout << count << setw(5) << "file removed:" << setw(5) << file_name << endl;
                    break;
                case FILE_ACTION_RENAMED_OLD_NAME:
                    cout << "file renamed:" << setw(5) << file_name << "->" << file_rename << endl;
                    break;
                default:
                    cout << "UNknow command!" << endl;
            }
        }
    }
    CloseHandle(dirHandle);

}