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EwfMgrOpenOverlayStore

5/10/2007

This function opens an Enhanced Write Filter (EWF) overlay store volume.

Syntax

HANDLE EwfMgrOpenOverlayStore(
  BOOL fOpenForAsyncIO
);

Parameters

  • fOpenForAsyncIO
    [in] If TRUE, an overlapped structure must be passed to EwfMgrRegisterLowSpaceNotification for asynchronous operation; otherwise, the behavior is undefined.

    If FALSE, a value of NULL must be passed to EwfMgrRegisterLowSpaceNotification for synchronous operation; otherwise, the behavior is undefined.

Return Value

If the function succeeds, the return value is a HANDLE to the EWF Overlay store volume.

If the function fails, the return value is INVALID_HANDLE_VALUE. Call GetLastError for extended error information.

Remarks

Use the EwfMgrClose function to close an object handle that was returned by EwfMgrOpenOverlayStore.

Example

The following routine(s), which are included in the EWF API Code Sample (Sample.cpp), demonstrate how to use this function:

DumpEwfOverlayConfig

DoEwfRegisterLowSpaceSync

DoEwfRegisterLowSpaceAsync

Requirements

OS Versions: Windows XP Embedded.

Header: Ewfapi.h.

Link Library: Ewfapi.dll, Ewfapi.lib.

See Also

Reference

EwfMgrClose

Concepts

EWF API Functions
EWF API Code Sample