KsSetInformationFile - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// ks.h
KSDDKAPI NTSTATUS KsSetInformationFile(
[in] PFILE_OBJECT FileObject,
[in] PVOID FileInformation,
[in] ULONG Length,
[in] FILE_INFORMATION_CLASS FileInformationClass
);
View the official Windows Driver Kit DDI referenceNo description available.
The KsSetInformationFile function performs an information set against the specified file object. The function attempts to use FastIoDispatch if possible, or it generates an information set against the device object.
FileObject [in]Specifies the file object to set the standard information on.
FileInformation [in]Indicates the place in which to put the file information. The file information is assumed to be a valid or probed address.
Length [in]Specifies the correct length of the FileInformation buffer.
FileInformationClass [in]Specifies the class of information being set.
The KsSetInformationFile function returns STATUS_SUCCESS if successful, or if unsuccessful it returns a set error.
The KsSetInformationFile function should be used only when the set would result in an actual request to the underlying driver, not including complex operations that require additional parameters to be sent to the driver such as rename, deletion, and completion. For example, FilePositionInformation would not generate such a request and should not be used. It assumes the caller is serializing access to the file for operations against a FO_SYNCHRONOUS_IO file object.