directx 9.0b sdk
directshow sdk 9.0 和9.0b版。配置的话随意百度下就有了
SD2.0完整版协议。适合驱动工程师调试使用。SD主从机设计等。
Portable Network Graphics (PNG) Specification (Second Edition) This document describes PNG (Portable Network Graphics), an extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-color, grayscale, and truecolor images are supported, plus an optional alpha channel. Sample depths range from 1 to 16 bits.