C / C++ / MFC

int i = 9;
cout << '(';
cout << i;
cout << ')';

int i = 9;
printf("(%d)", i);

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??
(doesn't work on NT)

struct
{
    WORD wLamp1 : 1;     // <-- this sets the struct member to only be 1 bit.
    WORD wLamp2 : 1;
    WORD wLamp3 : 1;
    WORD wGap   : 4;     // <-- I'm pretending you have a gap of 4 wires, for illustration.
    WORD wFan1  : 1;
etc...
} MyHardware;

// Turn on the lamp
MyHardware.wLamp2 = 1;
SetParallelPortFunctionOfSomeKind ((WORD *)&MyHardware);

// Turn off the lamp
MyHardware.wLamp2 = 0;
SetParallelPortFunctionOfSomeKind ((WORD *)&MyHardware);

LRESULT CMyFrameWnd::OnDisplayChange(WPARAM wParam, LPARAM lParam)
{
    // cBitsPerPixel = wParam;
    // cxScreen = LOWORD(lParam);
    // cyScreen = HIWORD(lParam);

    // Redraw the window and its children
    RedrawWindow(NULL, NULL, RDW_INVALIDATE | RDW_ERASE | RDW_ALLCHILDREN | RDW_UPDATENOW);

    // Pass it on to the base class
    return CFrameWnd::OnDisplayChange(wParam, lParam);
}