基于Qt的显控系统图形显示的研究

Research on graphic display of display and control system based on Qt

作为显控系统不可或缺的功能之一,在图形显示的过程中,如何保证嵌入式系统能够在所拥有硬件资源相对有限的前提下,频繁切换的画面仍旧能够具有相应的稳定性,是相关人员主要研究的课题之一。本文则以此为核心内容,对Qt显示、绘图的机制以及导致画面出现闪烁问题的原因进行了系统、深入的分析,并提出了具有针对性的解决策略,希望能够在某些方面为Qt显控系统所显示图形质量的提高提供一定的帮助。

As one of the indispensable display and control function of the system, in the process of graphic display, how to ensure that the embedded system can be used in the premise has relatively limited hardware resources under the frequent switching picture can still have the corresponding stability, is one of the main research topic related personnel. This paper is based on the core content of Qt. Display, drawing mechanism and reasons of the problems of flashing screen system, in-depth analysis, and puts forward some solving strategies, hope to be in some aspects of Qt display control system to provide some help to improve the quality of the graphics display.