CBFS Filter 2020 C++ Builder Edition

Questions / Feedback?

NotifyCanFileBeDeleted Event

Fires when the filesystem has determined whether a file or directory can be deleted.

Syntax

typedef struct {
  String FileName;
  bool CanDelete;
  int Status;
  int ResultCode;
} TcbfCBMonitorNotifyCanFileBeDeletedEventParams;

typedef void __fastcall (__closure *TcbfCBMonitorNotifyCanFileBeDeletedEvent)(System::TObject* Sender, TcbfCBMonitorNotifyCanFileBeDeletedEventParams *e);

__property TcbfCBMonitorNotifyCanFileBeDeletedEvent OnNotifyCanFileBeDeleted = { read=FOnNotifyCanFileBeDeleted, write=FOnNotifyCanFileBeDeleted };

Remarks

This event fires when the filesystem has determined whether the file or directory specified by FileName can be deleted. Such determinations are made anytime the Windows API's NtSetInformationFile function is called with FILE_DISPOSITION_INFORMATION or FILE_DISPOSITION_INFORMATION_EX data (which occurs for both "normal" delete requests, and file create/open requests that include the FILE_FLAG_DELETE_ON_CLOSE flag).

Applications only need to handle this event if they've added a standard filter rule that includes the FS_NE_CAN_DELETE flag.

The CanDelete parameter reflects whether the file or directory can be deleted.

The Status parameter contains an NT status code that indicates the outcome of the operation; 0 indicates success. To convert this value to a Win32 error code, call the NtStatusToWin32Error method. Please note that this event won't fire for failed requests unless the ProcessFailedRequests property is enabled.

The ResultCode parameter will always be 0 when the event is fired. If the event cannot be handled in a "successful" manner for some reason, set it to a non-zero value to report an appropriate error. Note, however, that this event fires after the operation has already completed, so reporting an error won't actually affect the operation itself. Please refer to the Error Reporting and Handling topic for more information.

This event is fired asynchronously; please refer to the Event Types topic for more information.

 
 
Copyright (c) 2020 Callback Technologies, Inc. - All rights reserved.
CBFS Filter 2020 C++ Builder Edition - Version 20.0 [Build 7543]