Программирование на си++

Question

Помогите реализовать на языке си++ программу, осуществляющую поиск файлов по заданным параметрам и копирование в какую-либо папку.

Артём Давыдов · Accepted Answer

Пример с МСДН. Можете подкорректировать под свои нужды.
========================
#include
#include
#include
#include

void DisplayErrorBox(LPTSTR lpszFunction);

int _tmain(int argc, TCHAR *argv[])
{
WIN32_FIND_DATA ffd;
LARGE_INTEGER filesize;
TCHAR szDir[MAX_PATH];
size_t length_of_arg;
HANDLE hFind = INVALID_HANDLE_VALUE;
DWORD dwError=0;

// If the directory is not specified as a command-line argument,
// print usage.

if(argc != 2)
{
_tprintf(TEXT("\nUsage: %s \n"), argv[0]);
return (-1);
}

// Check that the input path plus 3 is not longer than MAX_PATH.
// Three characters are for the "\*" plus NULL appended below.

StringCchLength(argv[1], MAX_PATH, &length_of_arg);

if (length_of_arg > (MAX_PATH - 3))
{
_tprintf(TEXT("\nDirectory path is too long.\n"));
return (-1);
}

_tprintf(TEXT("\nTarget directory is %s\n\n"), argv[1]);

// Prepare string for use with FindFile functions. First, copy the
// string to a buffer, then append '\*' to the directory name.

StringCchCopy(szDir, MAX_PATH, argv[1]);
StringCchCat(szDir, MAX_PATH, TEXT("\\*"));

// Find the first file in the directory.

hFind = FindFirstFile(szDir, &ffd);

if (INVALID_HANDLE_VALUE == hFind)
{
DisplayErrorBox(TEXT("FindFirstFile"));
return dwError;
}

// List all the files in the directory with some info about them.

do
{
if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
_tprintf(TEXT(" %s

\n"), ffd.cFileName);
}
else
{
filesize.LowPart = ffd.nFileSizeLow;
filesize.HighPart = ffd.nFileSizeHigh;
_tprintf(TEXT(" %s %ld bytes\n"), ffd.cFileName, filesize.QuadPart);
}
}
while (FindNextFile(hFind, &ffd) != 0);

dwError = GetLastError();
if (dwError != ERROR_NO_MORE_FILES)
{
DisplayErrorBox(TEXT("FindFirstFile"));
}

FindClose(hFind);
return dwError;
}

void DisplayErrorBox(LPTSTR lpszFunction)
{
// Retrieve the system error message for the last-error code

LPVOID lpMsgBuf;
LPVOID lpDisplayBuf;
DWORD dw = GetLastError();

FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
dw,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpMsgBuf,
0, NULL );

// Display the error message and clean up

lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT,
(lstrlen((LPCTSTR)lpMsgBuf)+lstrlen((LPCTSTR)lpszF unction)+40)*sizeof(TCHAR));
StringCchPrintf((LPTSTR)lpDisplayBuf,
LocalSize(lpDisplayBuf) / sizeof(TCHAR),
TEXT("%s failed with error %d: %s"),
lpszFunction, dw, lpMsgBuf);
MessageBox(NULL, (LPCTSTR)lpDisplayBuf, TEXT("Error"), MB_OK);

LocalFree(lpMsgBuf);
LocalFree(lpDisplayBuf);
}