form.cpp

#include <Windows.h>
#define width 640
#define height 480

LRESULT CALLBACK WindowProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam);

int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
	WNDCLASSEX windowClass;
	HWND hWnd;
	MSG uMsg;

	memset(&windowClass, 0, sizeof(WNDCLASSEX));
	windowClass.cbSize = sizeof(WNDCLASSEX);
	windowClass.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH);
	windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
	windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	windowClass.hInstance = hInstance;
	windowClass.lpfnWndProc = WindowProc;
	windowClass.lpszClassName = "Kramer";

	RegisterClassEx(&windowClass);

	hWnd = CreateWindow(windowClass.lpszClassName, "Kramer method", WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,
		(GetSystemMetrics(SM_CXSCREEN) - width) / 2, (GetSystemMetrics(SM_CYSCREEN) - height) / 2, width, height, NULL, NULL, NULL, NULL);

	ShowWindow(hWnd, nCmdShow);

	while (GetMessage(&uMsg, hWnd, NULL, NULL)) 
	{
		TranslateMessage(&uMsg);
		DispatchMessage(&uMsg);
	}
	return uMsg.wParam;
}

LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch (uMsg)
	{
	case WM_CLOSE:
		ExitProcess(0);
		break;
	default:
		return DefWindowProc(hWnd, uMsg, wParam, lParam);
	}
}