交互式、可控制图像旋转的实现原理和方法调试环境：Win XP；Delphi 7.5 -Interactive, can control the image rotation of the realization of the principles and methods of debugging environment: Win XP Delphi 7.5

TPNGimage控件，适用于Delphi和C++builder，内有安装说明,及应用例子-TPNGimage Component，Apply to Delphi and C++ builder, there are installation instructions and application examples