#include <iostream>
#include <Windows.h>
#include <time.h>
#include <Windowsx.h>
HWND Edit;
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
POINT start;

int max = 500, current = 10;
int randx, randy, randz;

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
	srand(time(0));

	HWND Main;
	MSG msg;

	WNDCLASSEX wc;

	char szClassName[] = "AppClass";

	wc.style = 0;
	wc.cbClsExtra = 0;
	wc.cbWndExtra = 0;
	wc.hIcon = 0;
	wc.hCursor = 0;
	wc.hbrBackground = 0;
	wc.lpszMenuName = NULL;
	wc.hIconSm = 0;

	wc.cbSize = sizeof(wc);
	wc.lpszClassName = szClassName;
	wc.hInstance = hInstance;
	wc.lpfnWndProc = WndProc;

	if (!RegisterClassEx(&wc)) {
		MessageBox(NULL, "Не удалось зарегистрировать класс окна", "Ошибка", MB_OK);
		return 0;
	}

	Main = CreateWindow(szClassName, "dsg", DS_CENTER | WS_MAXIMIZEBOX | WS_SYSMENU, CW_USEDEFAULT, 0, 700, 700, 0,0, hInstance,0);

	ShowWindow(Main, nCmdShow);

	while (GetMessage(&msg, NULL, 0, 0)) {
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	return 1;
}


LRESULT CALLBACK WndProc(HWND hDlg, UINT Msg, WPARAM wParam, LPARAM lParam) {
	HDC hdc;

	switch (Msg) {
		case WM_CREATE: {
			break;
		}
		case WM_PAINT: {
			hdc = GetDC(hDlg);

			MoveToEx(hdc, 0, 350,0);
			LineTo(hdc, 700, 350);

			MoveToEx(hdc, 350, 0, 0);
			LineTo(hdc, 350, 700);

			for (int x = -5; x <= 5; x++) {
				int cX = 350 + x*30;
				if (x>-5)LineTo(hdc, cX, cX ^ 2);

				SetPixel(hdc, cX, cX ^ 2, RGB(255,0,0));
				MoveToEx(hdc, cX, cX ^ 2, 0);

			}

			break;
		}
		case WM_CLOSE: {
			DestroyWindow(hDlg);
			break;
		}
		case WM_DESTROY: {
			PostQuitMessage(0);
			break;
		}
		default: {
			return DefWindowProc(hDlg, Msg, wParam, lParam); //обработка сообщений по умолчанию
		}
	}
	return 1;
}