新手需要帮助来制作“撤消"按钮 [英] Newbie needs help in making Undo pushbutton

问题描述

我是编程的新手.我正在尝试用Qt渲染OpenGL模型，现在我做了一个按钮，单击该按钮可以渲染模型，但是我还需要制作一个撤消"按钮.请我提供指导...我是初学者

I''m a beginner in programming. I''m trying out my hands on rendering OpenGL models in Qt, and now I made a pushbutton which when clicked renders the models, but I need to also make an Undo button. Please I need guidance...I''m a beginner

推荐答案

看看 Command 设计模式(您可以从相关的维基百科页面 [

Have a look at the Command design pattern (you may start at related Wikipedia page[^]): you may gain some insight.

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