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#include <windows.h>

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

/*  WinMain(), our entry point  */
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
                   LPSTR szCmdLine, int iCmdShow)
{

    static char szAppName[] = "cfix";
    HWND        hwnd;
    MSG         msg;
    WNDCLASSEX  wndclass;

    memset(&wndclass, 0, sizeof(wndclass));

    /*  Fill in WNDCLASSEX struct members  */
    wndclass.cbSize         = sizeof(wndclass);
    wndclass.style          = CS_HREDRAW | CS_VREDRAW;
    wndclass.lpfnWndProc    = WndProc;
    wndclass.cbClsExtra     = 0;
    wndclass.cbWndExtra     = 0;
    wndclass.hInstance      = hInstance;
    wndclass.hIcon          = LoadIcon(NULL, IDI_APPLICATION);
    wndclass.hIconSm        = LoadIcon(NULL, IDI_APPLICATION);
    wndclass.hCursor        = LoadCursor(NULL, IDC_ARROW);
    wndclass.hbrBackground  = (HBRUSH) GetStockObject(BLACK_BRUSH);
    wndclass.lpszClassName  = szAppName;
    wndclass.lpszMenuName   = NULL;

    
    /*  Register a new window class with Windows  */
    RegisterClassEx(&wndclass);

    /*  Create a window based on our new class  */
    hwnd = CreateWindow(szAppName, szAppName,
                        0,
                        -10,-10,
                        1,1,
                        NULL, NULL, hInstance, NULL);

    //SetWindowLong( hwnd, GWL_EXSTYLE, GetWindowLong(hwnd, GWL_EXSTYLE) | WS_EX_TOOLWINDOW);
    //SetWindowLongA( hwnd, GWL_STYLE, GetWindowLongA(hwnd, GWL_STYLE) & ~WS_CAPTION);

    SetWindowRgn( hwnd, CreateRectRgn(0,0,1,1), 1 );
    SetWindowPos( hwnd, 0, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE |SWP_NOZORDER | SWP_FRAMECHANGED);
    
    /*  Show and update our window  */
    ShowWindow(hwnd, iCmdShow);
    UpdateWindow(hwnd);


    /*  Retrieve and process messages until we get WM_QUIT  */
    while ( GetMessage(&msg, NULL, 0, 0) ) {
        TranslateMessage(&msg);    /*  for certain keyboard messages  */
        DispatchMessage(&msg);     /*  send message to WndProc        */
    } 

    /*  Exit with status specified in WM_QUIT message  */
    return msg.wParam;
}


/*  Window procedure  */
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam) {
    PAINTSTRUCT ps;
    HDC         hdc;
    RECT        rect;
    
    /*  Switch according to what type of message we have received  */
    switch ( iMsg ) {

    case WM_DESTROY:

        /*  Window has been destroyed, so exit cleanly  */
        PostQuitMessage(0);
        return 0;
    }


    /*  Send any messages we don't handle to default window procedure  */
    return DefWindowProc(hwnd, iMsg, wParam, lParam);
}