NotifySetFileSize Event

Fires when a file has been resized.

Syntax

ANSI (Cross Platform)
virtual int FireNotifySetFileSize(CBFilterNotifySetFileSizeEventParams *e);
typedef struct {
const char *FileName;
int64 Size;
int Status;
int ResultCode; int reserved; } CBFilterNotifySetFileSizeEventParams; Unicode (Windows) virtual INT FireNotifySetFileSize(CBFilterNotifySetFileSizeEventParams *e);
typedef struct {
LPCWSTR FileName;
LONG64 Size;
INT Status;
INT ResultCode; INT reserved; } CBFilterNotifySetFileSizeEventParams;
#define EID_CBFILTER_NOTIFYSETFILESIZE 80

virtual INT CBFSFILTER_CALL FireNotifySetFileSize(LPWSTR &lpszFileName, LONG64 &lSize, INT &iStatus, INT &iResultCode);

Remarks

This event fires when the file specified by FileName has been resized, whether explicitly (e.g., truncation) or implicitly (i.e., as data is appended).

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

The Size parameter reflects the new file size, in bytes.

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) 2022 Callback Technologies, Inc. - All rights reserved.
CBFS Filter 2020 C++ Edition - Version 20.0 [Build 8317]