C / C++ / MFC

#include <cstdio>

int main()
{
    int numerator = 10;
    float denominator = 2.7;

    // 1. Using no pointers
    float result = numerator / denominator;
    printf("%d / %f = %f\n", numerator, denominator, result);



    // 2. Using pointers incorrectly
    int *ptrToNumerator;
    ptrToNumerator = &numerator;
    // below line causes the following error:
    // error: invalid operands of types 'int*' and 'float' to binary 'operator/'|
    result = ptrToNumerator / denominator;
    printf("%f\n", result);



    // 3. Using pointers appropriately
    result = *ptrToNumerator / denominator;
    printf("%f\n", result);

    return 0;
}

<blockquote class="quote"><div class="op">Quote:</div>
	for(i=0;i<*SizeOfData;i++)
	{
	datasample[i]=square(samplesValue1[i]);
	squaring1=(datasample[i]*datasample[i]);
	sum +=squaring1;
        }
	summation_input=(float)sum/ *SizeOfData;   
	printf("\n%f",summation_input);
	
	fclose(fp);</blockquote>

Quote:

dithermain.c text+0x430): undefined reference to `square'
collect2: ld returned 1 exit status

maibam debina wrote:

in function after writing return();
is it possible to continue process...

int OtherDLLStatus (void) {

   return (OtherDLLStaticVar);
};

If you have a multithreaded application that creates a thread in a way other than using a CWinThread object, you cannot access other MFC objects from that thread. In other words, if you want to access any MFC object from a secondary thread, you must create that thread with one of the methods described in Multithreading: Creating User-Interface Threads or Multithreading: Creating Worker Threads. These methods are the only ones that allow the class library to initialize the internal variables necessary to handle multithreaded applications.

case CDDS_ITEMPREPAINT|CDDS_SUBITEM:
{
    if (::GetFocus() != m_MainTable.m_hWnd)
    {
        pCD->clrTextBk = RGB(192, 192, 192);    //Gray
        *pResult = CDRF_NEWFONT;
    }
    else
    {
        if (m_MainTable.GetItemState(nRow, LVIS_SELECTED)==LVIS_SELECTED && m_MainTable.GetItemState(nRow, LVIS_FOCUSED)==LVIS_FOCUSED)
        {
            pCD->clrTextBk	= RGB(167,205,240);    //Selected color
            *pResult = CDRF_NEWFONT;
        }
        if (m_MainTable.GetItemState(nRow, LVIS_SELECTED)==LVIS_SELECTED && m_MainTable.GetItemState(nRow, LVIS_FOCUSED)!=LVIS_FOCUSED)
        {
            pCD->clrTextBk = RGB(197, 206, 216);    //Only focused color
            *pResult = CDRF_NEWFONT;
        }
    }
    break;
}

Daniel 'Tak' M. wrote:

as it works fine with other keys.

Daniel 'Tak' M. wrote:

(other keys also don't work).

HKEY hKey;

if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon", 0, NULL, REG_OPTION_NON_VOLATILE, KEY_READ, NULL, &hKey, NULL) == ERROR_SUCCESS)
{
    BYTE   lpBuffer[1024];
    DWORD  dwType;
    DWORD  dwBufferSize = 1024;

    if (RegQueryValueEx(hKey, "DefaultUserName", 0, &dwType, lpBuffer, &dwBufferSize) == ERROR_SUCCESS)
    {
        ...
    }
}