摘要：
Dx9的文档上有这样一句话： When entering a new level in a game, your application might need to flush all managed textures from video memory (by calling IDirect3DDevice9::EvictManagedResources). 阅读全文
摘要：
http://blog.csdn.net/aweay/archive/2005/07/21/430147.aspx 阅读全文