main.cpp

#include <windows.h>
#include <iostream>
#include "MessageHandler.h"

LPCWSTR className = L"myWindowClass";
LPCWSTR mandelbrot = L"Mandelbrot";
LPCWSTR err = L"Window Creation Failed!";
LPCWSTR error = L"Error!";
LPCWSTR regorr = L"Window Registration Failed!";
MessageHandler mh;

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
    return mh.handle(hwnd, msg, wParam, lParam);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow = SW_MAXIMIZE) {
    WNDCLASSEX wc;
    HWND hwnd;
    MSG msg;

    wc.cbSize = sizeof(WNDCLASSEX);
    wc.style = 0;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = hInstance;
    wc.hIcon = LoadIcon(nullptr, IDI_APPLICATION);
    wc.hCursor = LoadCursor(nullptr, IDC_ARROW);
    wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
    wc.lpszMenuName = nullptr;
    wc.lpszClassName = className;
    wc.hIconSm = LoadIcon(nullptr, IDI_APPLICATION);

    if (!RegisterClassEx(&wc)) {
        MessageBox(nullptr, regorr, error, MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    hwnd = CreateWindowEx(
            WS_EX_CLIENTEDGE,
            className,
            mandelbrot,
            WS_OVERLAPPEDWINDOW,
            CW_USEDEFAULT, CW_USEDEFAULT, 600, 360,
            nullptr, nullptr, hInstance, nullptr);

    if (hwnd == nullptr) {
        MessageBox(nullptr, err, error, MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);

    while (GetMessage(&msg, nullptr, 0, 0) > 0) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}