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C Programming Starter Kit 2.0
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SamsPublishing-CProgrammingStarterKit-v2.0-Win31.iso
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bc45
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examples.pak
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VPOINT.CPP
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C/C++ Source or Header
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1997-07-23
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1KB
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53 lines
// Borland C++ - (C) Copyright 1991 by Borland International
/* VPOINT.CPP--Example from Getting Started */
// VPOINT.CPP contains the definitions for the Point and Location
// classes that are declared in the file vpoint.h
#include "vpoint.h"
#include <graphics.h>
// member functions for the Location class
Location::Location(int InitX, int InitY) {
X = InitX;
Y = InitY;
};
int Location::GetX(void) {
return X;
};
int Location::GetY(void) {
return Y;
};
// member functions for the Point class: These assume
// the main program has initialized the graphics system
Point::Point(int InitX, int InitY) : Location(InitX,InitY) {
Visible = false; // make invisible by default
};
void Point::Show(void) {
Visible = true;
putpixel(X, Y, getcolor()); // uses default color
};
void Point::Hide(void) {
Visible = false;
putpixel(X, Y, getbkcolor()); // uses background color to erase
};
Boolean Point::IsVisible(void) {
return Visible;
};
void Point::MoveTo(int NewX, int NewY) {
Hide(); // make current point invisible
X = NewX; // change X and Y coordinates to new location
Y = NewY;
Show(); // show point at new location
};