CRecycleBin.h File Reference

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Classes
class	CRecycleBin

Functions
BOOL	TRASH_CanTrashFile (LPCWSTR wszPath)
BOOL	TRASH_TrashFile (LPCWSTR wszPath)
HRESULT	CRecyclerDropTarget_CreateInstance (REFIID riid, LPVOID *ppvOut)

Function Documentation

CRecyclerDropTarget_CreateInstance()

HRESULT CRecyclerDropTarget_CreateInstance	(	REFIID	riid,
		LPVOID *	ppvOut
	)

Definition at line 180 of file CRecyclerDropTarget.cpp.

{
    return ShellObjectCreator<CRecyclerDropTarget>(riid, ppvOut);
}

Referenced by CRecycleBin::CreateViewObject(), and CDefaultContextMenu::DoDelete().

TRASH_CanTrashFile()

BOOL TRASH_CanTrashFile

(

LPCWSTR

wszPath

)

Tests whether a file can be trashed

Parameters

wszPath

Path to the file to be trash

Returns

TRUE if the file can be trashed, FALSE otherwise

Definition at line 932 of file CRecycleBin.cpp.

{
    LONG ret;
    DWORD dwNukeOnDelete, dwType, VolSerialNumber, MaxComponentLength;
    DWORD FileSystemFlags, dwSize, dwDisposition;
    HKEY hKey;
    WCHAR szBuffer[10];
    WCHAR szKey[150] = L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\BitBucket\\Volume\\";
 
    if (wszPath[1] != L':')
    {
        /* path is UNC */
        return FALSE;
    }
 
    // Copy and retrieve the root path from get given string
    WCHAR wszRootPathName[MAX_PATH];
    StringCbCopyW(wszRootPathName, sizeof(wszRootPathName), wszPath);
    PathStripToRootW(wszRootPathName);
 
    // Test to see if the drive is fixed (non removable)
    if (GetDriveTypeW(wszRootPathName) != DRIVE_FIXED)
    {
        /* no bitbucket on removable media */
        return FALSE;
    }
 
    if (!GetVolumeInformationW(wszRootPathName, NULL, 0, &VolSerialNumber, &MaxComponentLength, &FileSystemFlags, NULL, 0))
    {
        ERR("GetVolumeInformationW failed with %u wszRootPathName=%s\n", GetLastError(), debugstr_w(wszRootPathName));
        return FALSE;
    }
 
    swprintf(szBuffer, L"%04X-%04X", LOWORD(VolSerialNumber), HIWORD(VolSerialNumber));
    wcscat(szKey, szBuffer);
 
    if (RegCreateKeyExW(HKEY_CURRENT_USER, szKey, 0, NULL, 0, KEY_WRITE, NULL, &hKey, &dwDisposition) != ERROR_SUCCESS)
    {
        ERR("RegCreateKeyExW failed\n");
        return FALSE;
    }
 
    if (dwDisposition  & REG_CREATED_NEW_KEY)
    {
        /* per default move to bitbucket */
        dwNukeOnDelete = 0;
        RegSetValueExW(hKey, L"NukeOnDelete", 0, REG_DWORD, (LPBYTE)&dwNukeOnDelete, sizeof(DWORD));
        /* per default unlimited size */
        dwSize = -1;
        RegSetValueExW(hKey, L"MaxCapacity", 0, REG_DWORD, (LPBYTE)&dwSize, sizeof(DWORD));
        RegCloseKey(hKey);
        return TRUE;
    }
    else
    {
        dwSize = sizeof(dwNukeOnDelete);
        ret = RegQueryValueExW(hKey, L"NukeOnDelete", NULL, &dwType, (LPBYTE)&dwNukeOnDelete, &dwSize);
        if (ret != ERROR_SUCCESS)
        {
            if (ret ==  ERROR_FILE_NOT_FOUND)
            {
                /* restore key and enable bitbucket */
                dwNukeOnDelete = 0;
                RegSetValueExW(hKey, L"NukeOnDelete", 0, REG_DWORD, (LPBYTE)&dwNukeOnDelete, sizeof(DWORD));
            }
            RegCloseKey(hKey);
            return TRUE;
        }
        else if (dwNukeOnDelete)
        {
            /* do not delete to bitbucket */
            RegCloseKey(hKey);
            return FALSE;
        }
        /* FIXME
         * check if bitbucket is full
         */
        RegCloseKey(hKey);
        return TRUE;
    }
}

Referenced by delete_files().

TRASH_TrashFile()

BOOL TRASH_TrashFile

(

LPCWSTR

wszPath

)

Definition at line 1015 of file CRecycleBin.cpp.

{
    TRACE("(%s)\n", debugstr_w(wszPath));
    return DeleteFileToRecycleBin(wszPath);
}

Referenced by delete_files().