// Simons lilla fönster, har faktiskt skrivits i C, men det
// ser nästan likadant ut i C++ !

#include <windows.h>

LRESULT CALLBACK Funsterprocedur(HWND, UINT, WPARAM, LPARAM);
char szKlassNamn[ ] = "SimonsLillaFunster";
int WINAPI WinMain(HINSTANCE hDennaInstans, HINSTANCE hTidigareInstans,
					    LPSTR lpszArgument, int nFunsterStil)
{
	HWND hwnd;		
	MSG meddelande;	
	WNDCLASSEX wincl;

	wincl.hInstance = hDennaInstans;
	wincl.lpszClassName = szKlassNamn;
	wincl.lpfnWndProc = Funsterprocedur;   
	wincl.style = CS_DBLCLKS;
	wincl.cbSize = sizeof(WNDCLASSEX);
	wincl.hIcon = LoadIcon(NULL, IDI_APPLICATION); 
	wincl.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
	wincl.hCursor = LoadCursor(NULL, IDC_ARROW);
	wincl.lpszMenuName = NULL;
	wincl.cbClsExtra = 0;
	wincl.cbWndExtra = 0;  		
	wincl.hbrBackground = (HBRUSH) GetStockObject(LTGRAY_BRUSH);

	if(!RegisterClassEx(&wincl)) return 0;

	hwnd = CreateWindowEx(
		0,
		szKlassNamn,
		"Simons lilla fönster",
		WS_OVERLAPPEDWINDOW,
		CW_USEDEFAULT,
		CW_USEDEFAULT,
		280,
		180,
		HWND_DESKTOP,
		NULL,
		hDennaInstans,
		NULL
	);

	ShowWindow(hwnd, nFunsterStil);

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

	return  meddelande.wParam;
}


LRESULT CALLBACK Funsterprocedur(HWND hwnd, UINT message,
						       WPARAM wParam, LPARAM lParam)
{
	switch (message) {
		case WM_DESTROY:
			PostQuitMessage(0);
			break;
		default:
			return DefWindowProc(hwnd, message, wParam, lParam);
	}
	return 0;
}