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to enable the Still Pin functionality.

This is your workhorse. it provides a continuous stream of video frames, typically used for live previews. 53455028.jpg

In DirectShow, a USB camera is represented as a "source filter." Most modern cameras provide at least two output "pins": to enable the Still Pin functionality

Mastering USB Camera Grabs: Understanding Capture and Still Pins in DirectShow 53455028.jpg

Reference the (specifically the StillCap sample) for the most reliable C++ implementation examples. zouhuigang/zishahu: 紫砂壶拍照项目 - GitHub