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7/8/2014
Review the use, syntax, parameters, and return values of the UWF_OverlayConfig.SetType method for Windows Embedded 8.1 Industry (Industry 8.1).
This method sets the type of the Unified Write Filter (UWF) overlay to either RAM-based or disk-based.
Syntax
UInt32 SetType(
UInt32 type
);
Parameters
- type
The type of overlay. Set to 0 for a RAM-based overlay; set to 1 for a disk-based overlay.
Return Value
Returns an HRESULT value that indicates WMI status or a WMI error.
Remarks
Changes to the overlay type take effect during the next device restart in which UWF is enabled.
When you change the overlay type from RAM-based to disk-based, UWF creates a file on the system volume. The file has a size equal to the MaximumSize property of UWF_OverlayConfig.
Before you can change the overlay type to disk-based, your device must meet the following requirements.
- UWF must be disabled in the current session.
- The system volume on your device must have available free space greater than the maximum size of the overlay.
- The maximum size of the overlay must be at least 1024 MB.
Before you can change the overlay type to RAM-based, your device must meet the following requirements.
- UWF must be disabled in the current session.