FltGetIoPriorityHintFromFileObject function (fltkernel.h)
The FltGetIoPriorityHintFromFileObject routine is used by a minifilter driver to get IO priority information from a file object.
Syntax
IO_PRIORITY_HINT FLTAPI FltGetIoPriorityHintFromFileObject(
[in] PFILE_OBJECT FileObject
);
Parameters
[in] FileObject
A pointer to a file object. This parameter is required and cannot be NULL.
Return value
The FltGetIoPriorityHintFromFileObject routine returns an IO priority hint retrieved from a file object.
If the FileObject does not have a priority, the routine returns IoPriorityNormal.
If an error occurs retrieving the priority, the routine returns IoPriorityNormal.
Remarks
This routine is NONPAGED and can be called from paging IO paths.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows Vista and later Windows operating systems. |
| Target Platform | Universal |
| Header | fltkernel.h (include FltKernel.h) |
| Library | FltMgr.lib |
| DLL | Fltmgr.sys |
| IRQL | <= DISPATCH_LEVEL |
See also
FltGetIoPriorityHintFromCallbackData
FltGetIoPriorityHintFromThread
FltSetIoPriorityHintIntoCallbackData
FltSetIoPriorityHintIntoFileObject