#include <windows.h>

HWND window;

int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASS wc = {0};
MSG msg;
DWORD ticks, ticks2;
HHOOK kbd_hook, mouse_hook;

wc.lpfnWndProc = &DefWindowProc;
wc.lpszClassName = "testwc";
RegisterClass(&wc);
window = CreateWindow("testwc", "test", WS_OVERLAPPED | WS_VISIBLE | WS_CAPTION , 0, 0, 640, 480, 0, 0, 0, 0);

ticks = GetTickCount();

for (;;) {
    if (PeekMessage(&msg, NULL, WM_NULL, WM_KEYFIRST, PM_REMOVE)) {
        if (msg.message == WM_QUIT) {
         DestroyWindow(window);
         break;
         }

        TranslateMessage(&msg);
        DispatchMessage(&msg);
        }

    //simulated work
    ticks2 = GetTickCount();
    for (;;) {
        UINT i;
        volatile int dummy = 1;
        for (; i < 10000 && dummy; i++) ;
        if (GetTickCount() - ticks2 >= 10) break;
        }

    printf("main loop %u tick latency\n", GetTickCount() - ticks);
    ticks = GetTickCount();
    }
}