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WIM_PROVIDER_UPDATE_OVERLAY_INPUT structure (ntifs.h)

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The current Windows Image File (WIM) data source is updated with a new WIM file using the FSCTL_UPDATE_OVERLAY control request with a WIM_PROVIDER_UPDATE_OVERLAY_INPUT structure.

Syntax

typedef struct _WIM_PROVIDER_UPDATE_OVERLAY_INPUT {
  LARGE_INTEGER DataSourceId;
  ULONG         WimFileNameOffset;
  ULONG         WimFileNameLength;
} WIM_PROVIDER_UPDATE_OVERLAY_INPUT, *PWIM_PROVIDER_UPDATE_OVERLAY_INPUT;

Members

DataSourceId

An identifier value for the WIM file data source to update.

WimFileNameOffset

The offset, in bytes, from the beginning of this structure of the file name for the WIM file to add as a backing source. The file name is a string of WCHAR character values.

WimFileNameLength

The length, in bytes, of the file name at found at WimFileNameOffset.

Remarks

The WIM file name is included immediately following WIM_PROVIDER_UPDATE_OVERLAY_INPUT in the system buffer for a FSCTL_UPDATE_OVERLAY control request. The WimFileNameOffset member is set to sizeof(WIM_PROVIDER_UPDATE_OVERLAY_INPUT).

The WIM file name includes a terminating NULL character. WimFileNameLength contains the length of the file name excluding the terminating NULL.

Requirements

Requirement Value
Minimum supported client Windows 8.1 Update
Header ntifs.h (include Ntifs.h, Fltkernel.h)

See also

FSCTL_ADD_OVERLAY

FSCTL_REMOVE_OVERLAY

FSCTL_SUSPEND_OVERLAY

FSCTL_UPDATE_OVERLAY