客户在做 GUI 项目开发时，会碰到许多显示相关的问题。 屏幕花屏是比较严重的问题，如果产品出现花屏，会严重影响使用体验。正常的 UI 显示，包括画图和将帧缓冲传输到屏幕两个过程。如果画图过程出错，那帧缓冲的内容就不对了，传输到屏幕后显示也不 ...

These days, working with a display in software is fairly easy. Thanks to the convenience of the modern OS, we’re blessed with graphical user interfaces, where things such as buttons and windows and ...

Qt comes with a handy tool that lives a rather anonymous life in the tools/qvfb directory. This tool does wonders when it comes to demoing, training users and creating documentation. The QVFb, or Qt ...