List of files names in sub directory C++ [win32]

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Hello, I made a code that saves files name as a string for all files that exist in the same directory and iterate to print every file, but I want the function to print the file name in the subdirectories also.

What I have tried:

Code:-

C++

static void listfiles(string boost) {

	WIN32_FIND_DATA data;
	HANDLE hFind = FindFirstFile("C:/Users/zurghni/source/repos/Project13/Debug/grko/gslp/*", &data);      // DIRECTORY

	if (hFind != INVALID_HANDLE_VALUE) {
		do {
			std::cout << data.cFileName << std::endl; //prints files names in the directory
			system("puase");
		} while (FindNextFile(hFind, &data));
		FindClose(hFind);
	}
}

Posted 7-Jan-21 10:00am

MohammedZr

Updated 25-May-22 8:51am

v2

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enhzflep 7-Jan-21 16:54pm

Okay, fine. So what do you want to know?
You ahhh, you forgot to ask a question....

MohammedZr 7-Jan-21 16:56pm

I want to know how can I get the names of files in the subdirectories of a folder
for example, I have another folder inside the ``gslp`` folder that contains a bunch of files how can I get their names ?? and print them

enhzflep 7-Jan-21 17:02pm

Same way you got the names for this folder. I suspect, you're trying to tell which of the entries in the current folder are directories, and from there, list their contents as well.
Am I correct in thinking that the current barrier is determining which of the entries in the current directory are directories themselves?

2 solutions

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merano99 · Answer 1 · 2021-01-07T11:31:00

Listing the Files in a Directory - Win32 apps | Microsoft Docs[^]

You have to check the Attribute and append new directory name in

ffd.cFileName

to path and call FindFirst again.

C

// A TCHAR based std::string
typedef std::basic_string<TCHAR> tstring;

using namespace std;

void printfiles(tstring inputstr)
{
	TCHAR szDir[MAX_PATH];
	tstring seachstr = inputstr + TEXT("\\*");
	wcscpy_s(szDir, MAX_PATH, seachstr.c_str());

	// Find the first file in the directory.
	WIN32_FIND_DATA ffd;
	HANDLE hFind = FindFirstFile(szDir, &ffd);

	if (INVALID_HANDLE_VALUE == hFind) {
		_tprintf(TEXT("Error FindFirstFile\n"));
		return;
	}

	// List all the files in the directory with some info about them
	do {
		if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
			if (!_tcscmp(ffd.cFileName, TEXT(".")) || 
			   !_tcscmp(ffd.cFileName, TEXT(".."))) continue;
			tstring dirstr = inputstr + TEXT("\\") + ffd.cFileName;
			_tprintf(TEXT("  %s   <DIR>\n"), dirstr.c_str());
			printfiles(dirstr);
		}
		else {
			LARGE_INTEGER filesize;
			filesize.LowPart = ffd.nFileSizeLow;
			filesize.HighPart = ffd.nFileSizeHigh;
			_tprintf(TEXT("  %s   %lld bytes\n"), 
			   ffd.cFileName, filesize.QuadPart);
		}
	} while (FindNextFile(hFind, &ffd) != 0);

	DWORD dwError;
	dwError = GetLastError();
	if (dwError != ERROR_NO_MORE_FILES) {
		_tprintf(TEXT("Error while FindFile\n"));
	}

	FindClose(hFind);
}

Greg Utas · Answer 2 · 2022-05-25T08:51:00

Solution 3

If you can use C++17, you can do this in a platform-independent way using filesystem[^]. The function ListFiles in this .cpp[^] should give you an idea how to use it. It creates a list of the paths to all files in a specified directory but avoids subdirectories. You can change the logic to call the function recursively if you want to include files in subdirectories.

Posted 25-May-22 8:51am

Greg Utas

Comments

Richard Deeming 26-May-22 3:50am

The OP hasn't posted anything since last August, so don't hold your breath waiting for a reply. :)

Greg Utas 26-May-22 5:57am

I hope somebody finds it useful. :)