C / C++ / MFC

Mark Salsbery wrote:

I forgot about %c....do you need to cast the c argument to an int when it's passed as
an argument for %c?

char a = 65;
printf("%c \n", a);
// Result: 
// A
// Press any key to exit.

glyfyx wrote:

I tried to convert a keyboard virtual key code to a it's ascii character

glyfyx wrote:

The offending later statement is:

nLen = fprintf(fOut,"kcK=%d ud=%s kc=%d sh=%d ti=%d %s\n",cb.kcK,updn,keyCode,Shift,tick, c);

char c<font color="Red">[2]</font>;
c<font color="Red">[0]</font> = (char)__toascii(keyCode);
<font color="Red">c[1] = '\0';</font>
keyCode = p->vkCode;
...
nLen = fprintf(fOut,"kcK=%d ud=%s kc=%d sh=%d ti=%d %s\n",cb.kcK,updn,keyCode,Shift,tick, c);

Mark Salsbery
Microsoft MVP - Visual C++

sharanu wrote:

iFile = _open(strcat(cFileName, ".lck"), _O_CREAT | _O_EXCL | _O_RDWR);

sharanu wrote:

iFile = remove(strcat(cFileName, ""));

<font color="Green">// add to CMyDocumentClass class</font>
UINT wTimerRes = 0;
MMRESULT mmTimerId = 0;
static void CALLBACK MyTimerProc(UINT, UINT, DWORD_PTR dwUser, DWORD_PTR, DWORD_PTR);
void StartTimer();
void StopTimer();


<font color="Green">// Implement timer methods in class implementation...</font>

CMyDocumentClass::CMyDocumentClass()
{
    UINT wTimerRes = 0;
    MMRESULT mmTimerId = 0;
}

void CMyDocumentClass::StartTimer()
{
    TIMECAPS tc;
    if (::timeGetDevCaps(&tc, sizeof(TIMECAPS)) == TIMERR_NOERROR) 
    {
        <font color="Green">// Try for 1ms resolution - accept best</font>
        wTimerRes = min(max(tc.wPeriodMin, 1), tc.wPeriodMax);
        ::timeBeginPeriod(wTimerRes); 

        <font color="Green">// Set periodic 100ms timer</font>
        mmTimerId = ::timeSetEvent(100, wTimerRes, &CMyDocumentClass::MyTimerProc, (DWORD_PTR)this, 
                                                        TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
    }
}

void CMyDocumentClass::StopTimer()
{
    if (mmTimerId)
    {
        ::timeKillEvent(mmTimerId);
        mmTimerId = 0;
        ::timeEndPeriod(wTimerRes);
        wTimerRes = 0;
    }
}

void CALLBACK CMyDocumentClass::MyTimerProc(UINT, UINT, DWORD_PTR, DWORD_PTR, DWORD_PTR)
{
    CMyDocumentClass *pThis = (CMyDocumentClass *)dwUser;

   <font color="Green">// do something on timer</font>
}

Mark Salsbery
Microsoft MVP - Visual C++