C / C++ / MFC

Re: Password Program Help Please!!!

26-Aug-09 10:58

Try:

char pass[10];
system("clear"); 
printf("\n\nWhat is the password?\n\n"); 
scanf("%s", pass);
if (strcmp(pass, "l") == 0)

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

posidonofthecode27-Aug-09 14:29

posidonofthecode

27-Aug-09 14:29

Thanks.

Function return?

dipuks26-Aug-09 7:39

dipuks

26-Aug-09 7:39

Hello

I have a function, which opens a new MODAL dialog and returns the value.

int NewDialog(HWND..., ... ,...)
{
int i = DialogBox(.......,....,.....);
return i;
}

Now i am calling this function from inside another function and waiting for its return, and this GetDialog() function is a TIMEPROC function, which is getting called like every few milliseconds.

void CALLBACK GetDialog()
{
int k = NewDialog(....,....,.....,...);
// do somethings here...
}

The problem am facing is, inside GetDialog it doesn't wait for NewDialog to return.

i.e, the function just keeps on executing and never gets the return value.

The value of variable "k" is never initialized properly.

Is that because this function is a TIMERPROC function?

Any help is welcome. How to get the return value?

Re: Function return?

Code-o-mat26-Aug-09 9:14

Code-o-mat

26-Aug-09 9:14

Well, not directly because it is a TIMERPROC, but because it is called by/via a timer regularry. Does it keep popping up the dialog over and over again? You should either kill the timer before displaying the dialog and if needed, restart it after it has been dismissed, or maybe have a global or static variable that you use to signal if the dialog is up or not. For example like:

void CALLBACK GetDialog()
{
  static bool dlgIsUp = false;
  if (!dlsIsUp)
  {
    dlgIsUp = true;
    int k = NewDialog(...);
    dlgIsUp = false;
  }
}

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

/embedding setting does not work on Vista

Fwzklmn26-Aug-09 7:35

Fwzklmn

26-Aug-09 7:35

Dear All,
I have a debug version of vc++ project.
The project result will be called by other program using COM interface.
I use "/embedding" at "Command Arguments" ( MSVC++ 2005).
It works just fine with XP..I can debug the project.
But not with Vista...the loader program will load another instance instead connecting to the one that aleady loaded in memory..
Did I miss some settings ?

Thanks..

How do some viruses act without appearing in task manager?

Joseph Marzbani26-Aug-09 7:00

Joseph Marzbani

26-Aug-09 7:00

I've newly noticed that there's an unwanted activity among processes running on my computer that creates an "autorun.inf" and an exe named "khg.exe" in every removable memory attached to the computer. When I monitored the running processes, I found they're created by "Windows Explorer" !!! Ofcourse I can't accuse Microsoft Laugh | :laugh:

, but I can't understand, how it's possible to run a thread through another processes? WTF | :WTF:

I know the other processes, they are safe and sound Smile | :)

Thank you masters!

Re: How do some viruses act without appearing in task manager?

zhu_lin26-Aug-09 22:31

zhu_lin

26-Aug-09 22:31

DLL injection

it's my pleasure to make friend with you.

Setting the item count for a CListBox 'No Data' control

tmcart26-Aug-09 5:38

tmcart

26-Aug-09 5:38

Hi All,

My target platform is Windows Mobile 6.5.

I've created a 'virtual' CListBox with the styles LBS_NODATA, LBS_OWNERDRAWFIXED set and styles LBS_SORT, LBS_HASSTRINGS unset. I have a vector of 'owner data' and have implemented the DrawItem() function for the owner draw side.

My problem comes when trying to set the count of items that are in the 'virtual' CListBox.

SendMessage() for LB_SETCOUNT does not return an error yet neither does it actually modify the CListBox's count. I am able to force the count to increase via iterating AddString(NULL) for the number of items in the list, but that breaks the whole concept of a 'virtual' list.

I'm after the equivalent of CListCtrl's SetItemCountEx().

#define LB_SETCOUNT  0x1A7

BOOL CTestDialog::OnInitDialog()
{
    CDialog::OnInitDialog();
    m_data.reserve(5000);

    for (int i=0;i < 5000; ++i)
    {
        CString fmt;
        fmt.Format(L"Item %04d",i);
        m_data.push_back(fmt);

        /* This will force m_listbox.GetCount() to the correct number but results in the huge lag which I
         * am trying to avoid by being 'no data' and 'owner draw'.
         *
         * m_listbox.AddString(NULL);
         */
    }

    LRESULT result;
    result = m_listbox.SendMessage(LB_SETCOUNT,
                                  (WPARAM)(int)5000, 
                                  (LPARAM)0);

    int cnt = m_listbox.GetCount();

    m_listbox.SetItemHeight(0, 25);

    m_listbox.Invalidate();

    return TRUE;  // return TRUE unless you set the focus to a control
    // EXCEPTION: OCX Property Pages should return FALSE
}

Re: Setting the item count for a CListBox 'No Data' control

David Crow26-Aug-09 6:10

Re: Setting the item count for a CListBox 'No Data' control [modified]

26-Aug-09 6:10

tmcart wrote:
#define LB_SETCOUNT 0x1A7

Why are you redefining this?

tmcart wrote:
result = m_listbox.SendMessage(LB_SETCOUNT, (WPARAM)(int)5000, (LPARAM)0);

The LB_SETCOUNT message sets the number of items that the control will ultimately contain.

tmcart26-Aug-09 6:47

tmcart

26-Aug-09 6:47

DavidCrow wrote:
tmcart wrote:
#define LB_SETCOUNT 0x1A7

Why are you redefining this?

I am needing to define the LB_SETCOUNT as it isn't defined in 'windows mobile 6 sdk\pocketpc\include\armv4i\winuser.h' so I found the correct hex message code via google.

DavidCrow wrote:

tmcart wrote:
result = m_listbox.SendMessage(LB_SETCOUNT, (WPARAM)(int)5000, (LPARAM)0);

The LB_SETCOUNT message sets the number of items that the control will ultimately contain.

I'm not sure what you are getting at with your emphasis here?

What I was hoping from the LB_SETCOUNT is that would tell the CListBox it has 5000 virtual items. Thus when the CListBox's DrawItem() gets called the scroll bars and itemID range is based around having 5000 items.

CString CTestDialog::GetDataAt(size_t index)
{
    return m_data[index];
}


void CVListBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
    CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
    RECT r(lpDrawItemStruct->rcItem);
    CTestDialog *pDlg = (CTestDialog *)GetParent();
    CString text = L"<Default>";
    RECT focus(r);

    ASSERT(pDC);
    if (!pDC) return;

    if ((int)lpDrawItemStruct->itemID < 0)
    {
        if (lpDrawItemStruct->itemAction & ODA_FOCUS)
        {
            pDC->DrawFocusRect(&focus);
            pDC->Detach();
        }
        return;
    }

    text = pDlg->GetDataAt(lpDrawItemStruct->itemID);

    pDC->DrawText(text,
                  text.GetLength(),
                  &r, 
                  DT_LEFT | DT_SINGLELINE | DT_VCENTER);

    pDC->Detach();
}

modified on Thursday, August 27, 2009 5:42 AM

Re: Setting the item count for a CListBox 'No Data' control

tmcart3-Sep-09 23:39

tmcart

3-Sep-09 23:39

Got a response back from Microsoft on this.

Owner data CListBox isn't supported on CE, their advice was to use CListView.

Limit Number of connections from a given IP

Veandhan26-Aug-09 5:26

Veandhan

26-Aug-09 5:26

Hi All,

I am developing a chat server.

I need to limit the number of connections from a client.
Is there any API / Sample code available?

Thanks,
Veandhan

modified on Wednesday, August 26, 2009 12:08 PM

CPallini26-Aug-09 5:47

CPallini

26-Aug-09 5:47

Are you joking?

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Rajesh R Subramanian26-Aug-09 7:48

26-Aug-09 7:48

It looks like he's modified the query. What was it initially? Smile | :)

It is a crappy thing, but it's life -^ Carlo Pallini

David Crow26-Aug-09 9:22

26-Aug-09 9:22

Basically the same, except it was in the context of MFC.

Rajesh R Subramanian26-Aug-09 18:49

26-Aug-09 18:49

Oh, MFC limiting the inbound connections?! At times, these forums are a fun thing. Smile | :)

It is a crappy thing, but it's life -^ Carlo Pallini

CPallini26-Aug-09 21:36

CPallini

26-Aug-09 21:36

It was something like: "I need to know if the Higgs' particle really exists. Does MFC provide an API for ?"
Roll eyes | :rolleyes:

Rajesh R Subramanian26-Aug-09 22:22

26-Aug-09 22:22

In Mumbai, we use the CHiggsParticlesEx* class for that purpose.

*MFC 18.3 and a time-travel machine in good working condition may be required.

It is a crappy thing, but it's life -^ Carlo Pallini

CPallini26-Aug-09 22:37

CPallini

26-Aug-09 22:37

Rajesh R Subramanian wrote:
In Mumbai, we use the CHiggsParticlesEx* class for that purpose.

You're lucky. The Cern Library 2008 we've (a beta release), is broken here and there, the namespaces being soooo polluted: FindTheDamnedHiggs function, for instance, had collision troubles.
Laugh | :laugh:

Rajesh R Subramanian26-Aug-09 23:09

26-Aug-09 23:09

It is a crappy thing, but it's life -^ Carlo Pallini

David Crow26-Aug-09 6:03

26-Aug-09 6:03

Do you know what MFC is? Why would it care about such a specific thing?

Rajesh R Subramanian26-Aug-09 7:41

26-Aug-09 7:41

Veandhan wrote:
I am developing a chat server.

I need to limit the number of connections from a client.

Immediately after you accept a connection, find out the IP address of the other machine and disconnect it if it is already connected.

Veandhan wrote:
Is there any API / Sample code available?

Chat Server sample from MSDN[^]

It is a crappy thing, but it's life -^ Carlo Pallini

Veandhan26-Aug-09 15:54

Veandhan

26-Aug-09 15:54

Thanks Rajesh....

I have seen that link......

Basically i need a program which is independent one (not belongs to my server application) that should drop the incoming messages before it reaches my server application.

Is it possible?

Thanks,
Veandhan

modified on Wednesday, August 26, 2009 10:31 PM

Rajesh R Subramanian26-Aug-09 16:51

26-Aug-09 16:51

I do not understand the need for such a thing. Ideally, the server itself must be doing this.

It is a crappy thing, but it's life -^ Carlo Pallini