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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.H
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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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35 lines
// Borland C++ - (C) Copyright 1991 by Borland International
/* vpoint.h--Example from Getting Started */
// version of point.h with virtual functions for use with VCIRCLE
// vpoint.h contains two classes:
// class Location describes screen locations in X and Y coordinates
// class Point describes whether a point is hidden or visible
enum Boolean {false, true};
class Location {
protected: // allows derived class to access private data
int X;
int Y;
public: // these functions can be accessed from outside
Location(int InitX, int InitY);
int GetX();
int GetY();
};
class Point : public Location { // derived from class Location
// public derivation means that X and Y are protected within Point
protected:
Boolean Visible; // classes derived from Point will need access
public:
Point(int InitX, int InitY); // constructor
virtual void Show();
virtual void Hide();
Boolean IsVisible();
void MoveTo(int NewX, int NewY);
};