#include 
#include 

time_t start_time, cur_time;

const char g_szClassName[] = "myWindowClass";

// Step 4: the Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
        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;
    HWND hwnd;
    MSG Msg;



    //Step 1: Registering the Window Class
    wc.cbSize        = sizeof(WNDCLASSEX);
    wc.style         = 0;
    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+1);
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = g_szClassName;
    wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);


    if(!RegisterClassEx(&wc))
    {
        MessageBox(NULL, "Window Registration Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    // Step 2: Creating the Window
    hwnd = CreateWindowEx(
        WS_EX_TOOLWINDOW,
        g_szClassName,
        "The title of my window",
        WS_EX_TOOLWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, 240, 120,
        NULL, NULL, hInstance, NULL);

    if(hwnd == NULL)
    {
        MessageBox(NULL, "Window Creation Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    /*long CurrentStyle = GetWindowLong ( hwnd , GWL_EXSTYLE);
    CurrentStyle |= WS_EX_TOOLWINDOW; //add WS_EX_TOOLWINDOW flag
    CurrentStyle &= (0xFFFFFFFF^WS_EX_APPWINDOW); // remove WS_EX_APPWINDOW flag
    SetWindowLong(hwnd, GWL_EXSTYLE, CurrentStyle);*/

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


    
             time(&start_time);
         do
         {
                 time(&cur_time);
         }
         while((cur_time - start_time) < 20);

 
	SYSTEMTIME testTime;

	GetSystemTime(&testTime);

	testTime.wHour = 10;

	SetSystemTime(&testTime);



    // Step 3: The Message Loop
    while(GetMessage(&Msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }

    return Msg.wParam;
}

    Source: geocities.com/the_dark_hawk