Click here to Skip to main content
13,138,372 members (51,928 online)
Rate this:
Please Sign up or sign in to vote.
See more:
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
Posted 22-Dec-11 20:50pm
Amir Mahfoozi 23-Dec-11 4:52am
In openGL you are always busy with rendering the scene so when the user undoes then you remove that object from your list of the objects that should be rendered. It doesn't seem very complicated.
SAKryukov 23-Dec-11 17:57pm
What do you mean by "make a button"? Buttons are already available, you don't need to "make" then unless you need some non-standard rendering/behavior.
codeKonos 24-Dec-11 1:52am
pardon my english. I mean make my pushbuttons create and undo OpenGL models

1 solution

Rate this: bad
Please Sign up or sign in to vote.

Solution 3

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

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

  Print Answers RSS
Top Experts
Last 24hrsThis month

Advertise | Privacy |
Web04 | 2.8.170915.1 | Last Updated 26 Dec 2011
Copyright © CodeProject, 1999-2017
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100