摘要: 目前各类非高依赖DirectDraw应用中屏幕捕捉技术存在效率低下、捕捉遗漏、光标丢失以及不够稳定等问题。为此,提出基于镜像显示驱动的屏幕图像捕捉方案。设计并实现内核驱动,通过捕捉鼠标光标移动路径中的关键点再现光标轨迹,并对捕获到的变化区域集进行优化合并。实验结果证明,该方案能快速稳定地捕捉屏幕上的变化区域图像,实现光标的移动捕捉。
关键词:
镜像显示驱动,
屏幕图像捕捉,
变化区域,
光标捕捉,
显示驱动,
设备驱动接口
Abstract: In order to resolve the low efficiency issue, capturing-omitting and mouse cursor-missing problems in screen image capture technology for applications with non-high-dependency of the DirectDraw, this paper realizes Mirror Driver, redraws the track of cursor by capturing key points in moving-path and combines the updated regions grabbed to optimize the performance. Experimental results show that the resolution is speed-fast and stable when capturing the modified areas including mouse cursor-moving path on desktop.
Key words:
Mirror Driver,
screen image capture,
updated region,
cursor capture
display drive,
device drive interface
中图分类号:
周恕义, 陈圣奇, 贺玉虎, 金蕾. 基于Mirror Driver的屏幕图像捕捉技术[J]. 计算机工程, 2013, 39(6): 295-298,303.
ZHOU Shu-Xi, CHEN Ku-Ai, HE Yu-Hu, JIN Lei. Screen Image Capture Technology Based on Mirror Driver[J]. Computer Engineering, 2013, 39(6): 295-298,303.