The FLT_PARAMETERS union defines the request-type-specific parameters associated with an I/O operation.
This structure is stored in the Parameters field of the FLT_IO_PARAMETER_BLOCK structure for the operation. (A pointer to the FLT_IO_PARAMETER_BLOCK structure is stored in the Iopb field of the FLT_CALLBACK_DATA structure for the operation.)
For the specific FLT_PARAMETERS union component used in each type of I/O operation, see the following reference entries.
The following I/O operations do not have parameters: