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April 5th, 2003, 11:36 AM
#1
Windows SDK File System: How to delete a directory and subdirectories?
Q: How to delete a directory and subdirectories?
A:
Code:
#include <string>
#include <iostream>
#include <windows.h>
#include <conio.h>
int DeleteDirectory(const std::string &refcstrRootDirectory,
bool bDeleteSubdirectories = true)
{
bool bSubdirectory = false; // Flag, indicating whether
// subdirectories have been found
HANDLE hFile; // Handle to directory
std::string strFilePath; // Filepath
std::string strPattern; // Pattern
WIN32_FIND_DATA FileInformation; // File information
strPattern = refcstrRootDirectory + "\\*.*";
hFile = ::FindFirstFile(strPattern.c_str(), &FileInformation);
if(hFile != INVALID_HANDLE_VALUE)
{
do
{
if(FileInformation.cFileName[0] != '.')
{
strFilePath.erase();
strFilePath = refcstrRootDirectory + "\\" + FileInformation.cFileName;
if(FileInformation.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
if(bDeleteSubdirectories)
{
// Delete subdirectory
int iRC = DeleteDirectory(strFilePath, bDeleteSubdirectories);
if(iRC)
return iRC;
}
else
bSubdirectory = true;
}
else
{
// Set file attributes
if(::SetFileAttributes(strFilePath.c_str(),
FILE_ATTRIBUTE_NORMAL) == FALSE)
return ::GetLastError();
// Delete file
if(::DeleteFile(strFilePath.c_str()) == FALSE)
return ::GetLastError();
}
}
} while(::FindNextFile(hFile, &FileInformation) == TRUE);
// Close handle
::FindClose(hFile);
DWORD dwError = ::GetLastError();
if(dwError != ERROR_NO_MORE_FILES)
return dwError;
else
{
if(!bSubdirectory)
{
// Set directory attributes
if(::SetFileAttributes(refcstrRootDirectory.c_str(),
FILE_ATTRIBUTE_NORMAL) == FALSE)
return ::GetLastError();
// Delete directory
if(::RemoveDirectory(refcstrRootDirectory.c_str()) == FALSE)
return ::GetLastError();
}
}
}
return 0;
}
int main()
{
int iRC = 0;
std::string strDirectoryToDelete = "c:\\mydir";
// Delete 'c:\mydir' without deleting the subdirectories
iRC = DeleteDirectory(strDirectoryToDelete, false);
if(iRC)
{
std::cout << "Error " << iRC << std::endl;
return -1;
}
// Delete 'c:\mydir' and its subdirectories
iRC = DeleteDirectory(strDirectoryToDelete);
if(iRC)
{
std::cout << "Error " << iRC << std::endl;
return -1;
}
// Wait for keystroke
_getch();
return 0;
}
As Paul McKenzie just pointed out: I am not responsible for any possible damage this function might do to a system (like calling it with 'c:\\')...
Last edited by Andreas Masur; July 24th, 2005 at 05:19 PM.
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April 21st, 2005, 06:04 AM
#2
Q: How to delete a directory and its subdirectories using the Shell API?
A: You can use 'SHFileOperation', which copies, removes, renames or deletes a file system object. In the example below it is used to delete a folder in a recursive manner:
Code:
#include <windows.h>
#include <tchar.h>
#include <shellapi.h>
bool DeleteDirectory(LPCTSTR lpszDir, bool noRecycleBin = true)
{
int len = _tcslen(lpszDir);
TCHAR *pszFrom = new TCHAR[len+2];
_tcscpy(pszFrom, lpszDir);
pszFrom[len] = 0;
pszFrom[len+1] = 0;
SHFILEOPSTRUCT fileop;
fileop.hwnd = NULL; // no status display
fileop.wFunc = FO_DELETE; // delete operation
fileop.pFrom = pszFrom; // source file name as double null terminated string
fileop.pTo = NULL; // no destination needed
fileop.fFlags = FOF_NOCONFIRMATION|FOF_SILENT; // do not prompt the user
if(!noRecycleBin)
fileop.fFlags |= FOF_ALLOWUNDO;
fileop.fAnyOperationsAborted = FALSE;
fileop.lpszProgressTitle = NULL;
fileop.hNameMappings = NULL;
int ret = SHFileOperation(&fileop);
delete [] pszFrom;
return (ret == 0);
}
int main()
{
DeleteDirectory("d:\\Test", false);
return 0;
}
Last edited by Andreas Masur; July 24th, 2005 at 05:20 PM.
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