《微软：DirectShow开发指南》第5章 Capturing Audio and Video from a Webcam

Webcams have become nearly ubiquitous peripherals for today’s PCs. They’re inexpensive and produce video imagery of varying quality—often dependent on how much the webcam cost or how fast your computer runs. Furthermore, you don’t have to do much to set up a webcam: just plug it into an available port, and you’re ready to go. Windows XP provides desktop-level access to webcams (and all digital cameras attached to the computer) through Windows Explorer; here you can take single frames of video and save them to disk as photographs.Webcams have become nearly ubiquitous periphera