Changing file attributes?

I would like to be able to change certain file attributes of existing files or set these file attributes before creating the the files from within my program. e.g. - the date of creation of a file.
Can anybody point me in the right direction?

from msdn

Code:

WIN32_FIND_DATA FileData; 
HANDLE hSearch; 
DWORD dwAttrs; 
char szDirPath[] = "c:\\TEXTRO\\"; 
char szNewPath[MAX_PATH]; 
char szHome[MAX_PATH]; 
 
BOOL fFinished = FALSE; 
 
// Create a new directory. 
 
if (!CreateDirectory(szDirPath, NULL)) 
{ 
    ErrorHandler("Couldn't create new directory."); 
} 
 
// Start searching for .TXT files in the current directory. 
 
hSearch = FindFirstFile("*.txt", &FileData); 
if (hSearch == INVALID_HANDLE_VALUE) 
{ 
    ErrorHandler("No .TXT files found."); 
} 
 
// Copy each .TXT file to the new directory 
// and change it to read only, if not already. 
 
while (!fFinished) 
{ 
    lstrcpy(szNewPath, szDirPath); 
    lstrcat(szNewPath, FileData.cFileName); 
    if (CopyFile(FileData.cFileName, szNewPath, FALSE))
    { 
        dwAttrs = GetFileAttributes(FileData.cFileName); 
        if (!(dwAttrs & FILE_ATTRIBUTE_READONLY)) 
        { 
            SetFileAttributes(szNewPath, 
                dwAttrs | FILE_ATTRIBUTE_READONLY); 
        } 
    } 
    else 
    { 
        ErrorHandler("Couldn't copy file."); 
    } 
 
    if (!FindNextFile(hSearch, &FileData)) 
    {
        if (GetLastError() == ERROR_NO_MORE_FILES) 
        { 
            MessageBox(hwnd, "No more .TXT files.", 
                "Search completed.", MB_OK); 
            fFinished = TRUE; 
        } 
        else 
        { 
            ErrorHandler("Couldn't find next file."); 
        } 
    }
} 
 
// Close the search handle. 
 
if (!FindClose(hSearch)) 
{ 
    ErrorHandler("Couldn't close search handle."); 
}

I'm a total noob in win c++ programming.. where is this code to be placed? does it matter? can I have it in the OnInitDialog or`?