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#include <Windows.h>


//przechwytuje wszytkie komunikaty
MSG Komunikat;
TCHAR NazwaKlasy[] = TEXT("Jestem se klasa ");

HWND hwnd;
HWND guzik,guzik1,guzik2;



LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{



    switch (msg)
    {
    case WM_CLOSE:
    {
        if (MessageBox(NULL, TEXT("Serio chcesz zamknac?"), TEXT("Warning"), MB_YESNO) == IDYES)
            DestroyWindow(hwnd);
        break;
    }
    case WM_DESTROY:
    {
        PostQuitMessage(1);
    }
    break;


    default:
        return DefWindowProc(hwnd, msg, wParam, lParam);
    }

    return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hprevInstance, LPSTR lpCmdLine, int nCmdShow)
{

    //tworzenie klasy okno

    WNDCLASSEX wc;


    wc.cbSize = sizeof(WNDCLASSEX);
    wc.style = CS_VREDRAW | CS_HREDRAW;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = hInstance;
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 0);
    wc.lpszMenuName = NULL;
    wc.lpszClassName = NazwaKlasy;
    wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
    if (!RegisterClassEx(&wc))
    {
        MessageBox(NULL, "Odmowa okna", "ww", MB_ICONEXCLAMATION | MB_OK);
        return 1;
    }
    RECT okno;
    GetClientRect(hwnd, &okno);
    hwnd = CreateWindowEx(WS_EX_WINDOWEDGE, NazwaKlasy, "Oto Okienko", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 800, 600, NULL, NULL, hInstance, NULL);
    //guzik = CreateWindowEx(0, "BUTTON", "Guziczek", WS_CHILD | WS_VISIBLE,400,300,200,100,hwnd,NULL,hInstance,NULL );
    guzik1 = CreateWindowEx(0, "BUTTON", "Guziczek", WS_CHILD | WS_VISIBLE, okno.right/2, okno.bottom/2, 100, 50, hwnd, NULL, hInstance, NULL);
    if (hwnd == 0)
    {
        MessageBox(NULL, "Nie działa", "Ojć", MB_ICONEXCLAMATION);
        return 1;
    }
    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);


    //Petla przechwytujaca kounikaty
    while (GetMessage(&Komunikat, NULL, 0, 0))
    {
        TranslateMessage(&Komunikat);
        DispatchMessage(&Komunikat);
    }

    UnregisterClass(NazwaKlasy, hInstance);
    return Komunikat.wParam;


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


}