lab3.4

#include "stdafx.h"
#include <vector>
#define _USE_MATH_DEFINES
#include <math.h>
#include <Windows.h>
#include <tchar.h>

using namespace std;

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
TCHAR WinName[] = _T("MainFrame");

vector <int> shape;
int APIENTRY WinMain(HINSTANCE This, HINSTANCE Prev, LPSTR cmd, int mode)
{
    HWND hWnd;
    MSG msg;
    WNDCLASS wc;
    wc.hInstance = This;
    wc.lpszClassName = WinName;
    wc.lpfnWndProc = WndProc;
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.lpszMenuName = NULL;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;

    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    if (!RegisterClass(&wc)) return 0;

    hWnd = CreateWindow(WinName, _T("Каркас Windows-приложения"),
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        HWND_DESKTOP,
        NULL,
        This,
        NULL);
    ShowWindow(hWnd, mode);

    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return 0;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
    PAINTSTRUCT ps;
    HDC hdc;
    class Vector2D {
    public:
        int step;
        int x1, y1, x2, y2;
        int xaxix1() {
            x1 = 200;
            return x1;
        }
        int xaxix2() {
            x2 = 0;
            return x2;
        }
        int yaxix1() {
            y1 = 100;
            return y1;
        }
        int yaxix2() {
            y2 = -100;
            return y2;
        }
        void setstep() {
            step = 200;
        }
        int getstep() {
            return step;
        }
    };
    Vector2D v;
    Vector2D p;
    int step;
    v.setstep();
    static int sx, sy;
    static HPEN hpen;
    int a, b, x1, y1=p.yaxix1(), x2, y2=p.yaxix2();
    switch (message) {
    case WM_CREATE:
        hpen = CreatePen(PS_SOLID, 2, RGB(0, 0, 255));
        break;
    case WM_SIZE:
        sx = LOWORD(lParam);
        sy = HIWORD(lParam);
        break;
    case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        a = sx / 2;
        b = sy / 2;
        SelectObject(hdc, hpen);
        for (int i = 0; i < 3; i++) {
            x1 = p.xaxix1();
            x2 = p.xaxix2();
            y1 += v.getstep();
            y2 += v.getstep();
            for (int j = 0; j < 3; j++) {
                x1 += v.getstep();
                x2 += v.getstep();
                Ellipse(hdc, x1, y1, x2, y2);
            }
        }
        EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY:
        DeleteObject(hpen);
        PostQuitMessage(0);
        break;
    default: return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}