May 2012
Intermediate to advanced
679 pages
16h 56m
English
Content preview from Object Oriented Programming with C++, Second Edition
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17.3 THE SCREEN IN GRAPHICS MODE
When we want to display graphics on the screen, we have to set the screen in graphics mode. The origin in the graphics mode is in the top left corner of the screen. In our programs, we will be using VGAHI mode 2. It supports 640 pixels in the x-direction and 480 pixels in the y-direction. The x and y coordinates start from 0 and end at 639 and 479, respectively. This is shown in Figure 17.1.
Figure 17.1 Graphics screen
Please note that the origin is at the top left corner, x-axis extends towards right and y-axis extends downwards.
Let us write a simple program and study these principles.
Problem: Write ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.