#define SCREEN_WIDTH 700
#define SCREEN_HEIGHT 600
#define ID_BUTTONEURO 1
#define ID_BUTTONZLOTOWKI 2
#define ID_BUTTONFUNTY 3
#define ID_CUSTOMERVALUE 4
#define ID_ENDINGVALUE 5
#include <windows.h>
#include <tchar.h>

TCHAR className[] = TEXT("NazwaKlasy");
TCHAR appName[] = TEXT("Stoperan");

HWND hwnd;
MSG msg;

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	//
	 TCHAR wyn[10];
	 DWORD dlugosc;
    LPSTR Bufor;
	//
	static RECT R;
	static HWND ButtonEuro,ButtonZlotowki,ButtonFunty,CustomerValue,EndingValue;
	switch (msg)
	{
	case WM_CREATE:
	{

		GetClientRect(hwnd, &R);
		HINSTANCE &hInstance=((LPCREATESTRUCT)lParam)->hInstance;
		CustomerValue=CreateWindowEx(0,TEXT("EDIT"),TEXT(""),WS_CHILD|WS_VISIBLE|WS_BORDER,0,0,0,0,hwnd,(HMENU)ID_CUSTOMERVALUE,hInstance,0);
		ButtonEuro=CreateWindowEx(0,TEXT("BUTTON"),TEXT("Euro"),WS_CHILD|WS_VISIBLE|BS_CHECKBOX,0,0,0,0,hwnd,(HMENU)ID_BUTTONEURO,hInstance,0);
		ButtonFunty=CreateWindowEx(0,TEXT("BUTTON"),TEXT("Funty"),WS_CHILD|WS_VISIBLE|BS_CHECKBOX,0,0,0,0,hwnd,(HMENU)ID_BUTTONFUNTY,hInstance,0);
		ButtonZlotowki=CreateWindowEx(0,TEXT("BUTTON"),TEXT("LICZ"),WS_CHILD|WS_VISIBLE,0,0,0,0,hwnd,(HMENU)ID_BUTTONZLOTOWKI,hInstance,0);
			EndingValue=CreateWindowEx(0,TEXT("STATIC"),TEXT("Wynik"),WS_CHILD|WS_VISIBLE|WS_BORDER,0,0,0,0,hwnd,(HMENU)ID_ENDINGVALUE,hInstance,0);
	}break;

	case WM_SIZE:
	{
		GetClientRect(hwnd, &R);
		MoveWindow(ButtonEuro,R.right/3,R.bottom/3,R.right/7,R.bottom/15,1);
		MoveWindow(ButtonFunty,R.right/2,R.bottom/3,R.right/7,R.bottom/15,1);
		MoveWindow(CustomerValue,R.right/3,R.bottom/4,R.right/3.5,R.bottom/15,1);
		MoveWindow(ButtonZlotowki,R.right/3,R.bottom/2.5+10,R.right/8,R.bottom/15,1);
		MoveWindow(EndingValue,R.right/2,R.bottom/2.5+10,R.right/8,R.bottom/15,1);
	}break;

	case WM_GETMINMAXINFO:
		((MINMAXINFO*)lParam)->ptMinTrackSize.x = 500;
		((MINMAXINFO*)lParam)->ptMinTrackSize.y = 400;
		((MINMAXINFO*)lParam)->ptMaxTrackSize.x = 1000;
		((MINMAXINFO*)lParam)->ptMaxTrackSize.y = 900;
		break;

	case WM_COMMAND:

		switch(LOWORD(wParam)){
		case ID_BUTTONEURO:
			switch(HIWORD(wParam)){
			case BN_CLICKED:
				if(SendDlgItemMessage(hwnd,ID_BUTTONEURO,BM_GETCHECK,0,0)==0){
				SendDlgItemMessage(hwnd,ID_BUTTONEURO,BM_SETCHECK,1,0);
				SendDlgItemMessage(hwnd,ID_BUTTONFUNTY,BM_SETCHECK,0,0);
				}

				break;
			}
			break;
		case ID_BUTTONFUNTY:
			switch(HIWORD(wParam)){
			case BN_CLICKED:
				if(SendDlgItemMessage(hwnd,ID_BUTTONFUNTY,BM_GETCHECK,0,0)==0){
				SendDlgItemMessage(hwnd,ID_BUTTONFUNTY,BM_SETCHECK,1,0);
				SendDlgItemMessage(hwnd,ID_BUTTONEURO,BM_SETCHECK,0,0);
				}
				break;

			}
		case ID_CUSTOMERVALUE:

			break;
		case ID_BUTTONZLOTOWKI:
			switch(HIWORD(wParam)){
			case BN_CLICKED:
				if(SendDlgItemMessage(hwnd,ID_BUTTONFUNTY,BM_GETCHECK,0,0)==0){SetWindowText(EndingValue,"Euro");}
				else{SetWindowText(EndingValue,"Funty");}
				break;

			}

			break;

		}

		break;

	case WM_CLOSE:
		DestroyWindow(hwnd);
		break;

	case WM_DESTROY:
	{

		PostQuitMessage(0);
	}break;

	default:
		return DefWindowProc(hwnd, msg, wParam, lParam);
	}
	return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
	WNDCLASSEX wc;
	wc.cbSize = sizeof(WNDCLASSEX);
	wc.style = 0;
	wc.cbClsExtra = 0;
	wc.cbWndExtra = 0;
	wc.hInstance = hInstance;
	wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
	wc.lpfnWndProc = WndProc;
	wc.lpszClassName = className;
	wc.lpszMenuName = NULL;
	wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
	wc.hCursor = LoadCursor(NULL, IDC_ARROW);

	if (RegisterClassEx(&wc) == 0)
	{
		MessageBox(NULL, TEXT("wc"), className, MB_OK);
		return 1;
	}

	hwnd = CreateWindowEx(WS_EX_APPWINDOW | WS_EX_CLIENTEDGE, className, appName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, SCREEN_WIDTH, SCREEN_HEIGHT,0, 0, hInstance, 0);
	if (hwnd == NULL)
	{
		MessageBox(NULL, TEXT("hwnd"), className, MB_OK);
		return 1;
	}

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

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

	UnregisterClass(className, hInstance);

	return msg.wParam;
}