mandelbrot-c99.c

#include <windows.h>
#include <conio.h>
#include <stdlib.h>
#include <complex.h>
#include <math.h>
const char *title = "Mandelbrot Set";
#define SIZE 600
#define ITERS 25

int main(void)
{
    system("cls");
    SetConsoleTitle(title);
    HWND hwnd = FindWindow(NULL, title); // Get the HWND
    HDC hdc = GetDC(hwnd); // Get the DC from that HWND
    /***/

    for (int y = 1; y < SIZE; y++)
        for (int x = 1; x < SIZE; x++)
        {
			complex double c = -2 + 2.5*x/SIZE +I*(-1.25 + 2.5*y/SIZE);
			complex double z = c;

			int i;
            for (i = 0; i < ITERS && cabs(z) < 4.0; i++)
				z = z*z + c;

            i = 250 - 250/ITERS*i;
            SetPixel(hdc, x, y, RGB(i,i,i));
        }

    /***/
    ReleaseDC(hwnd, hdc); // Release the DC
    DeleteDC(hdc); // Delete the DC
    _getch();
    return 0;
}