Getting file-names in a directory
Author
Hi!
I'm searching for a method/algorithm or a way how to get every filename in a specified folder.
I used the search function, but the only thing I found was "outdatet" because dirent.h doesnt exists (anymore?). Also searched articles on gamedev but found nothing that could help me.
At the moment I'm using ms visual c++ 2005.
thanks in advance
Author
A short question:
My source looks like this:
The path is:
"Data\\Maps"
The problem is that he doesnt find any file.
In the documentaition is written that you can use wildcars for files and some other stuff.
Tried with the path:
"Data\\Maps\\*.dat"
But if I use this path I always get an unhandled exception.
Any suggestions?
My source looks like this:
BOOL xyz::GetFilesFromDirectory(char* Path){ string searchPath = Path; HANDLE fileSearcher; BOOL worked = FALSE; LPWIN32_FIND_DATA DataInformation = NULL; if(!m_DirectorySearched){ fileSearcher = FindFirstFile(Path, DataInformation); if(fileSearcher != INVALID_HANDLE_VALUE && DataInformation != NULL){ worked = TRUE; m_FileNames.push_back(DataInformation->cFileName); while(FindNextFile(fileSearcher, DataInformation)){ m_FileNames.push_back(DataInformation->cFileName); } } } return worked;}The path is:
"Data\\Maps"
The problem is that he doesnt find any file.
In the documentaition is written that you can use wildcars for files and some other stuff.
Tried with the path:
"Data\\Maps\\*.dat"
But if I use this path I always get an unhandled exception.
Any suggestions?
You need to allocate your DataInformation variable, not pass a NULL pointer.
I.e.
Edit:
You want to pass "Data\\Maps\\*.dat" as your path. If you pass "Data\\Maps", then there won't be any files that match that path, so FindFirstFile() returns INVALID_HANDLE_VALUE, and DataInformation is never filled. When you pass "Data\\Maps\\*.dat", DataInformation gets used, and you get an access violation as Win32 tries to write to a NULL pointer.
[Edited by - Evil Steve on March 5, 2006 1:00:55 PM]
I.e.
HANDLE hFind;WIN32_FIND_DATA theFind;hFind = FindFirstFile(Path,&theFind);if(hFind == INVALID_HANDLE_VALUE) return false;do { // Add filename to list} while(FindNextFile(hFind,&theFind);FindClose(hFind); // Don't forget this!Edit:
You want to pass "Data\\Maps\\*.dat" as your path. If you pass "Data\\Maps", then there won't be any files that match that path, so FindFirstFile() returns INVALID_HANDLE_VALUE, and DataInformation is never filled. When you pass "Data\\Maps\\*.dat", DataInformation gets used, and you get an access violation as Win32 tries to write to a NULL pointer.
[Edited by - Evil Steve on March 5, 2006 1:00:55 PM]
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
