日常檔案操作的時候，在刪除或者移動某個檔案的時候，發現它被某些程序佔用了。

那麼下面的程式碼就可以幫助我們找出這些程序的id和name。

原理：

將資源註冊到Restart Manager會話。重新啟動管理器使用在會話中註冊的資源列表來確定必須關閉並重新啟動哪些應用程式和服務。

程式碼：

#include <windows.h>
#include <RestartManager.h>
#include <stdio.h>
#pragma comment(lib,"Rstrtmgr.lib")
int __cdecl wmain(int argc, WCHAR** argv)
{
    DWORD dwSession;
    WCHAR szSessionKey[CCH_RM_SESSION_KEY 
 
+ 1] = { 0 };
    DWORD dwError = RmStartSession(&dwSession, 0, szSessionKey);
    wprintf(L"RmStartSession returned %d\n", dwError);
    if (dwError == ERROR_SUCCESS) {
        PCWSTR pszFile = L"test.txt";
        dwError = RmRegisterResources(dwSession, 1, &pszFile,
            0, NULL, 0, NULL);
        wprintf(L
 
"RmRegisterResources(%ls) returned %d\n",
            pszFile, dwError);
        if (dwError == ERROR_SUCCESS) {
            DWORD dwReason;
            UINT i;
            UINT nProcInfoNeeded;
            UINT nProcInfo = 10;
            RM_PROCESS_INFO rgpi[10];
            dwError = RmGetList(dwSession, &nProcInfoNeeded,
                
 
&nProcInfo, rgpi, &dwReason);
            wprintf(L"RmGetList returned %d\n", dwError);
            if (dwError == ERROR_SUCCESS) {
                wprintf(L"RmGetList returned %d infos (%d needed)\n",
                    nProcInfo, nProcInfoNeeded);
                for (i = 0; i < nProcInfo; i++) {
                    wprintf(L"%d.ApplicationType = %d\n", i,
                        rgpi[i].ApplicationType);
                    wprintf(L"%d.strAppName = %ls\n", i,
                        rgpi[i].strAppName);
                    wprintf(L"%d.Process.dwProcessId = %d\n", i,
                        rgpi[i].Process.dwProcessId);
                    HANDLE hProcess = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION,
                        FALSE, rgpi[i].Process.dwProcessId);
                    if (hProcess) {
                        FILETIME ftCreate, ftExit, ftKernel, ftUser;
                        if (GetProcessTimes(hProcess, &ftCreate, &ftExit,
                            &ftKernel, &ftUser) &&
                            CompareFileTime(&rgpi[i].Process.ProcessStartTime,
                                &ftCreate) == 0) {
                            WCHAR sz[MAX_PATH];
                            DWORD cch = MAX_PATH;
                            if (QueryFullProcessImageNameW(hProcess, 0, sz, &cch) &&
                                cch <= MAX_PATH) {
                                wprintf(L"  = %ls\n", sz);
                            }
                        }
                        CloseHandle(hProcess);
                    }
                }
            }
        }
        RmEndSession(dwSession);
    }
    return 0;
}

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