Lab_7/16 var (IIl semester)

//Lab_7.cpp
#include "stdafx.h"
#include <iostream>
#include <windows.h>
using namespace std;

class Rect
{
public:
    virtual void print()
    {
        cout << "\nI'm a rectangle\n\n\n\n";
        POINT op;
        HWND hWnd = GetConsoleWindow(); //Получаем дескриптор окна консоли
        HDC hDC = GetDC(hWnd); //Получаем контекст устройства по полученному дескриптору
        Rectangle(hDC, 150, 40, 310, 80);
        ReleaseDC(hWnd, hDC);
    }
};
class Button : public Rect
{
public:
    void print()
    {
        cout << "\nI'm a button\n\n\n\n";
        POINT op;
        HWND hWnd = GetConsoleWindow();
        HDC hDC = GetDC(hWnd);
        SelectObject(hDC, GetStockObject(WHITE_PEN));
        MoveToEx(hDC, 150, 100, &op); LineTo(hDC, 310, 100);
        MoveToEx(hDC, 310, 100, &op); LineTo(hDC, 310, 140);
        MoveToEx(hDC, 310, 140, &op); LineTo(hDC, 150, 140);
        MoveToEx(hDC, 150, 140, &op); LineTo(hDC, 150, 100);
        //
        MoveToEx(hDC, 145, 95, &op); LineTo(hDC, 150, 100);
        MoveToEx(hDC, 315, 95, &op); LineTo(hDC, 310, 100);
        MoveToEx(hDC, 315, 145, &op); LineTo(hDC, 310, 140);
        MoveToEx(hDC, 145, 145, &op); LineTo(hDC, 150, 140);
        //
        MoveToEx(hDC, 145, 95, &op); LineTo(hDC, 315, 95);
        MoveToEx(hDC, 315, 95, &op); LineTo(hDC, 315, 145);
        MoveToEx(hDC, 315, 145, &op); LineTo(hDC, 145, 145);
        MoveToEx(hDC, 145, 145, &op); LineTo(hDC, 145, 95);
        ReleaseDC(hWnd, hDC);
    }
};
class FloatButton : public Rect
{
public:
    void print()
    {
        cout << "\nI'm a floatButton\n\n\n\n\n";
        POINT op;
        HWND hWnd = GetConsoleWindow();
        HDC hDC = GetDC(hWnd);
        Ellipse(hDC, 150, 200, 250, 300);
        Ellipse(hDC, 175, 225, 225, 275);
        Ellipse(hDC, 185, 235, 215, 265);
    }
};

int main()
{
    Rect rect, *rect_p = &rect;
    Button button, *button_p = &button;
    Rect *R1 = &button;
    FloatButton Fbutton, *Fbutton_p = &Fbutton;
    Rect *R2 = &Fbutton;
    rect_p->print(); // rect
    button_p->print(); // button
    R1->print(); // button
    R2->print(); //floatButton
    cout << endl;
    system("pause");
}