#include <windows.h>
#include <vector>

using namespace std;

vector<HWND> uchwyty;

LRESULT CALLBACK Proces(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam){
    switch(msg){
        case WM_CLOSE:{
            if(IDYES==MessageBox(0,L"Chcesz zamknac okno?",L"Alert",MB_YESNO)) DestroyWindow(hWnd);
                      } break;

        case WM_DESTROY:{
            PostQuitMessage(0);
                        } break;
    }
    return 0;
}

bool RejestrujKlase(WNDCLASSEX &okno, HINSTANCE hInst){
    okno.cbClsExtra =   okno.cbWndExtra =   0;
    okno.cbSize =   sizeof(WNDCLASSEX);
    okno.hbrBackground  =   (HBRUSH)(1+COLOR_WINDOW);
    okno.hCursor    =   LoadCursor(NULL,IDC_ARROW);
    okno.hIcon  =   okno.hIconSm    =   LoadIcon(NULL,IDI_APPLICATION);
    okno.hInstance  =   hInst;
    okno.lpfnWndProc    =   Proces;
    okno.lpszClassName  =   L"OKNO";
    okno.lpszMenuName   =   0;
    okno.style  =   0;
    if(!RegisterClassEx(&okno)) return true;
    return false;
}

int WINAPI wWinMain(HINSTANCE hInst, HINSTANCE AAA, LPWSTR lpCmdLine, int nShowCmd){
    WNDCLASSEX klasa;
    RejestrujKlase(klasa, hInst);

    MSG msg;

    uchwyty.push_back(CreateWindowEx(0,L"OKNO",L"TEST_1",WS_OVERLAPPEDWINDOW ^ WS_VISIBLE,30,30,400,300,0,0,GetModuleHandle(NULL),0));

    ShowWindow(uchwyty.back(),nShowCmd);
    UpdateWindow(uchwyty.back());

    while(1){GetMessage(&msg,0,0,0);
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    UnregisterClass(L"WINDOW",hInst);
    return 0;

}