FltClearCancelCompletion function (fltkernel.h)
FltClearCancelCompletion clears a cancel routine that was specified for an I/O operation.
Syntax
NTSTATUS FLTAPI FltClearCancelCompletion(
[in] PFLT_CALLBACK_DATA CallbackData
);
Parameters
[in] CallbackData
Pointer to the callback data (FLT_CALLBACK_DATA) structure for the I/O operation.
Return value
If no cancel routine was previously set or if IRP cancellation is already in progress, FltClearCancelCompletion returns STATUS_CANCELLED. Otherwise, it returns STATUS_SUCCESS.
Remarks
A minifilter driver calls FltClearCancelCompletion to clear a cancel routine that was specified for an I/O operation by a previous call to FltSetCancelCompletion. The operation must be an IRP-based I/O operation. To determine whether a given callback data (FLT_CALLBACK_DATA) structure represents an IRP-based I/O operation, use the FLT_IS_IRP_OPERATION macro.
To cancel an I/O operation, call FltCancelIo.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Universal |
| Header | fltkernel.h (include Fltkernel.h) |
| Library | FltMgr.lib |
| IRQL | Any level |