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FindFirstFile and FindNextFile usage

I'm using MS Vis C++ 6.0 on an NT machine. I need some help in using FindFirstFile and FindNextFile. If someone could give me 2 simple codes, it would be great. 1) I need a code that would output the list of files (and directories if possible) to screen. 2) I need a code that would output the list of files (and directories if possible) to an array.

Thanks in advance!

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nietod

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nietod

The array is a little more difficult, how do you know haw big to make it? You can count the files and then allocate the array dynamcially, but a beter idea would be to use an array class, like vector<>. At that point it is probably a good idea to use a string class to store the name too, so I'll use a vector of strings, like

vector<string> FileList;

BOOL Done; // Done searching for files?
HANDLE FndHnd = NULL; // Handle to find data.
WIN32_FIND_DATA FindDat; // Info on file found.

FndHnd = FindFirstFile("C:\\*.txt", &FindDat);
Done = (FndHnd == NULL); // Indicate we are done if nothing was found.

while (!Done)
{
string FileName = FindDat.cFileName;

FileList.push_back(FileName);
Done = !FindNextFile(FndHnd, &FindDat);
}
if (FndHnd) // If there was anything found, then
FindClose(FndHnd); // Close the find handle

Let me know if you have any questions.

Wyn

nietod ,this code is wrong:

Done = (FndHnd == NULL);

should be

Done = (FndHnd == INVALID_HANDLE_VALUE);

Regards

nietod

Right!. I made that misake before. (That is from my EE notes). I corrected my mistake when it was pointed out. But the the correction was lost (apparently) when I lost my computer to a virus. Thanks. Correcting again.....

junkyboy

ASKER

When I tried using the above code, Visual returns a "Access Violation" and I get strange characters instead of filenames. This occurs after compiling/linking.

junkyboy

ASKER

Sorry, I think I was doing something wrong in my code. I got it all working. Thank you for all your support, everyone! :)