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C-/C++-Quelltext

HANDLE FindFirstFile(
  LPCTSTR lpFileName,
  LPWIN32_FIND_DATA lpFindFileData
);

C-/C++-Quelltext

// The FindNextFile function continues a file search from a previous call to the FindFirstFile or FindFirstFileEx function.


BOOL FindNextFile(
  HANDLE hFindFile,
  LPWIN32_FIND_DATA lpFindFileData
);

C-/C++-Quelltext

// The FindClose function closes a file search handle opened by the FindFirstFile, FindFirstFileEx, or FindFirstStreamW function.



BOOL FindClose(
  HANDLE hFindFile
);

C-/C++-Quelltext

// The WIN32_FIND_DATA structure describes a file that the FindFirstFile, FindFirstFileEx, or FindNextFile functions find.


typedef struct _WIN32_FIND_DATA {  DWORD dwFileAttributes;  FILETIME ftCreationTime;  FILETIME ftLastAccessTime;  FILETIME ftLastWriteTime;  DWORD nFileSizeHigh;  DWORD nFileSizeLow;  DWORD dwReserved0;  DWORD dwReserved1;  TCHAR cFileName[MAX_PATH];  TCHAR cAlternateFileName[14];
} WIN32_FIND_DATA, *PWIN32_FIND_DATA, *LPWIN32_FIND_DATA;

C-/C++-Quelltext

//...

C-/C++-Quelltext

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

float FormatFileSize( __int64 value, char*& unit )
{
    static const char* values[] =
    {
        "B ", "kB", "MB", "GB", "TB"
    };

    int i = 0;
    long double v = ( long double )value;

    while ( v > 1024 )
    {
        v *= 0.0009765625;
        ++i;
    }
    
    return unit = i > ( sizeof( values ) / sizeof( values[ 0 ] ) ) ? "n/a" : values[ i ], ( float )v;
}

int main()
{
    WIN32_FIND_DATA data;
    HANDLE handle;

    if ( ( handle = FindFirstFile( "*", &data ) ) != INVALID_HANDLE_VALUE )
    {
        int files = 0;
        int directories = 0;

        do
        {
            char* unit = "";
            float filesize = FormatFileSize( ( ( data.nFileSizeHigh << 32 ) | data.nFileSizeLow ), unit );
            bool isDirectory = ( data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) != 0;

            if ( isDirectory )
                ++directories;
            else
                ++files;

            printf( "%s %8.3f %s %s\n", isDirectory ? "<DIR>" : "     ", filesize, unit, data.cFileName );

        } while ( FindNextFile( handle, &data ) );

        printf( "%d Datei(en)\n%d Verzeichnis(se)\n", files, directories );
        FindClose( handle );
    }
    else
        printf( "Fehler %d", GetLastError() );
}