摘要
在VC++绘图中,经常会遇到显示效率不高、重绘时闪烁的问题,特别是对成像等大数据量数据重绘时显示速度慢、闪烁更加频繁。分析了上述问题存在原因,详细介绍了利用MFC提供的裁剪区提高重绘效率和采用内存设备环境绘制图形解决屏闪的具体方法,绘图效率有突破性提高,屏闪现象得到有效控制。
Low efficency and screen blinking are often occur When display in Visual C＋＋, Especialy as volume datas re-drawed. This paper analyse the cause of problems ,and elaborate on the methods how to use MFC＇ s clip region to enhance efficency and how to adopt memory device-context to resolve screen blinking.Through those means plotting efficency have enhanced substantially,screen blinking have been controlled effectively.
出处
《电脑编程技巧与维护》
2014年第2期19-20,26,共3页
Computer Programming Skills & Maintenance
关键词
VC++语言
大数据量数据
绘图
裁剪区
屏闪
Visual C＋＋ language
volume data
plot diagram
clip region
screen blinking
