MF_CAPTURE_METADATA_FRAME_ILLUMINATION attribute
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A value indicating whether a frame was captured using active infrared (IR) illumination.
Data type
UINT64
Remarks
This attribute is a bitmask. It is a 64 bit value for backward compatibility.
Active illumination is when a device has a light emitter close to the IR camera emitting a beam of light to illuminate the scene, typically emitting IR light so it won’t disturb human eyes. Set value to (value & 0x1) != 0 if frame was captured when active illumination was on and set (value & 0x1) == 0 if active illumination was off.
Requirements
Requirement | Value |
---|---|
Minimum supported client |
Windows 10, version 1709 [desktop apps only] |
Minimum supported server |
Windows Server, version 1709 [desktop apps only] |
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