Saraff DirectX DS is TWAIN Data Source (TWAIN Certified Driver) that capturing video from a USB web camera and making snapshots using it (the webcam twain driver). The DS may set size of captured video and snapshots.
Also, you can see:
saraff-9EB1047A4BEB4cef8506B29BA325BD5A/Saraff.Twain.DS.DirectX
TWAIN Data Source that capturing video from a USB web camera and making snapshots using it
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