Mengambil Waktu Last-Write

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Contoh berikut menggunakan fungsi GetFileTime untuk mengambil waktu penulisan terakhir untuk file. Ini mengonversi waktu ke waktu lokal berdasarkan pengaturan zona waktu saat ini, dan membuat string tanggal dan waktu yang dapat ditampilkan kepada pengguna.

#include <windows.h>
#include <tchar.h>
#include <strsafe.h>

// GetLastWriteTime - Retrieves the last-write time and converts
//                    the time to a string
//
// Return value - TRUE if successful, FALSE otherwise
// hFile      - Valid file handle
// lpszString - Pointer to buffer to receive string

BOOL GetLastWriteTime(HANDLE hFile, LPTSTR lpszString, DWORD dwSize)
{
    FILETIME ftCreate, ftAccess, ftWrite;
    SYSTEMTIME stUTC, stLocal;
    DWORD dwRet;

    // Retrieve the file times for the file.
    if (!GetFileTime(hFile, &ftCreate, &ftAccess, &ftWrite))
        return FALSE;

    // Convert the last-write time to local time.
    FileTimeToSystemTime(&ftWrite, &stUTC);
    SystemTimeToTzSpecificLocalTime(NULL, &stUTC, &stLocal);

    // Build a string showing the date and time.
    dwRet = StringCchPrintf(lpszString, dwSize, 
        TEXT("%02d/%02d/%d  %02d:%02d"),
        stLocal.wMonth, stLocal.wDay, stLocal.wYear,
        stLocal.wHour, stLocal.wMinute);

    if( S_OK == dwRet )
        return TRUE;
    else return FALSE;
}

int _tmain(int argc, TCHAR *argv[])
{
    HANDLE hFile;
    TCHAR szBuf[MAX_PATH];

    if( argc != 2 )
    {
        printf("This sample takes a file name as a parameter\n");
        return 0;
    }
    hFile = CreateFile(argv[1], GENERIC_READ, FILE_SHARE_READ, NULL,
        OPEN_EXISTING, 0, NULL);

    if(hFile == INVALID_HANDLE_VALUE)
    {
        printf("CreateFile failed with %d\n", GetLastError());
        return 0;
    }
    if(GetLastWriteTime( hFile, szBuf, MAX_PATH ))
        _tprintf(TEXT("Last write time is: %s\n"), szBuf);
        
    CloseHandle(hFile);    
}

FileTimeToSystemTime

SystemTimeToTzSpecificLocalTime