Programming and Graphics

200 Introduction to C++ Programming and Graphics

(a)(b)

Figure 7.2.1. (a) A blankVoglewindow, and (b) a greetingVoglewindow.

where the backslash is a line continuation mark.

Throughout this chapter, we shall assume that theVogleC++ header
filevoglec++.hresides in the subdirectoryVOGLE of the current working
directory.

7.2 Getting started withVogle.....................

The following code contained in the filewindow.ccgenerates the red graphics
window shown in Figure 7.2.1(a):

#include "VOGLE/voglec++.h"

using namespace std;

int main()

{

prefposition (600,200); // window position

prefsize(300, 300); // window size

vinit("X11"); // initialize the screen

color (RED);

clear();

getkey();

return 0;

}