C / C++ / MFC

5-Nov-07 7:18

Mark Salsbery wrote:
since you gave no specifics.

He's fishing

Re: Making a DLL

wajih.boukaram5-Nov-07 7:40

wajih.boukaram

5-Nov-07 7:40

yeah that link helped - thanks Smile | :)

Debugging Exception

ScotDolan5-Nov-07 5:21

ScotDolan

5-Nov-07 5:21

I am getting a exception while running in the debugger. It happens inside a memcpy and VS 2003 C++ stops the app and opens the assembly code for the memcpy. Is there anyway to find out which memcpy in my code cause this problem.

Scott Dolan
Jernie Corporation
Engineering & Manufacturing
Software, Hardware, & Enclosures

led mike5-Nov-07 5:44

5-Nov-07 5:44

Did you look in the Call Stack View?

ScotDolan5-Nov-07 10:29

ScotDolan

5-Nov-07 10:29

Where the hell is the call stack view?

Scott Dolan
Jernie Corporation
Engineering & Manufacturing
Software, Hardware, & Enclosures

Peter Weyzen5-Nov-07 16:56

Peter Weyzen

5-Nov-07 16:56

Menu: Debug > Windows > Call Stack

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.soonr.com">SoonR Inc -- PC Power delivered to your phone</A>

ThatsAlok5-Nov-07 21:51

ThatsAlok

5-Nov-07 21:51

ScotDolan wrote:
I am getting a exception while running in the debugger. It happens inside a memcpy and VS 2003 C++ stops the app and opens the assembly code for the memcpy. Is there anyway to find out which memcpy in my code cause this problem.

post your code here!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
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Problem with DatePicker

M_Menon5-Nov-07 5:13

M_Menon

5-Nov-07 5:13

Hi Friends
I am not able to get the Selected Date from the DatePicker. It is showing me the Current DateTime always.

I am new with VC++.
//Initializing
, m_Date( CTime::GetCurrentTime())

DDX_DateTimeCtrl(pDX, IDC_DATE, m_Date);

And then i am Changing the Date in DatePicker, and on Button Click Event,
i have the below instruction, where i need the Selected Date but instead it is showing me CurrentDateTime()

SELECT Polhsh_ID FROM Polhsh WHERE Installation_ID = %d AND Pelaths_ID = %d AND ActionType = '%s'AND Hmeromhnia= #%s# "), Installation_ID, m_Promhtheytes.GetItemData( m_Promhtheytes.GetCurSel()), ActionType, m_Date.Format( _T("%Y/%m/%d")) );

But i am always getting the Current DateTime.

I know it must be something simple, But i am completely new with VC++.

I hope if anybody gets time, give me some help.

Thanks

Cheers

Menon

led mike5-Nov-07 5:43

5-Nov-07 5:43

See UpdateData()[^]

Also if your beginning you should be using a book or tutorials. If they have not covered UpdateData then they aren't any good so find another.

M_Menon5-Nov-07 5:50

M_Menon

5-Nov-07 5:50

Hi mike

Thank you. Well i generally work on C#.NET web applications.
And there is some modifications to be done on project made by someone else.

After whole day coding in C#.NET i make mistakes while writing VC++.

And again, thanks

Cheers

Menon

David Crow5-Nov-07 8:40

David Crow

5-Nov-07 8:40

This works fine for me:

void CMyDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
    //{{AFX_DATA_MAP(CMyDlg)
    DDX_Control(pDX, IDC_DATETIMEPICKER1, m_date); // m_date is CDateTimeCtrl object
    //}}AFX_DATA_MAP
}
 
BEGIN_MESSAGE_MAP(CMyDlg, CDialog)
    //{{AFX_MSG_MAP(CDbcDlg)
    ON_NOTIFY(DTN_DATETIMECHANGE, IDC_DATETIMEPICKER1, OnChangeDateTimePicker)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()
 
void CMyDlg::OnChangeDateTimePicker(NMHDR* pNMHDR, LRESULT* pResult) 
{
    COleDateTime t;
    m_date.GetTime(t);
    TRACE("%s\n", t.Format("%Y/%m/%d"));
	
    *pResult = 0;
}

Note there is no UpdateData() call.

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

M_Menon5-Nov-07 20:40

M_Menon

5-Nov-07 20:40

Thanks David

My mistake or so called foolishness was i forgot the UpdateData(True) Big Grin | :-D

Still Thanks

Cheers

Menon

David Crow6-Nov-07 2:38

David Crow

6-Nov-07 2:38

M_Menon wrote:
i forgot the UpdateData(True)...

It's not necessary when you use control variables (e.g., CDateTimeCtrl instead of CTime).

CAsyncSocket Prob

TheInfernalCrow5-Nov-07 3:52

5-Nov-07 3:52

Hi,

I am Using VC++6.0. I created a little demo Proggy, that contains a Server and a Client Class, derived from CAsyncSocket and everything works fine so far.

But now I transferred the client class into another App and it doesn't work.

I have this kind of code:

<br />
CMyAsnycClient Client<br />
<br />
Client.Create();<br />
Client.Connect("127.0.0.1", 23);<br />

My Test Proggy Server Gets the
OnAccept(),
and calls
Server.Accept(AcceptedSocket);

Everything fine so far.

But now my Client should get
OnConnect()
and it doesn't, where it does in my Test Proggy. Where could be a difference, when I use the same class and the same pieces of code?

Greetings

led mike5-Nov-07 4:24

5-Nov-07 4:24

TheInfernalCrow wrote:
But now my Client should get

The client has to call Connect() before it will receive an OnConnect()

TheInfernalCrow5-Nov-07 4:25

5-Nov-07 4:25

It calls connect(), and I wrote it in my example

led mike5-Nov-07 4:44

5-Nov-07 4:44

TheInfernalCrow wrote:
It calls connect()

What does connect return?

TheInfernalCrow5-Nov-07 4:45

5-Nov-07 4:45

led mike5-Nov-07 5:03

5-Nov-07 5:03

That's it? That's all your going to post? I can't believe I am even bothering to respond to this nonsense.

Are you aware that return values have a purpose? That in most cases they hide the meaning and explanation of the return value in the documentation[^]

I strongly suggest you use the documentation rather than guessing and posting questions in forums.

TheInfernalCrow5-Nov-07 5:35

5-Nov-07 5:35

Sorry, I mixed up the meaning of the remark, i understood it the way that if the function returns 0 it was successful

led mike5-Nov-07 5:41

5-Nov-07 5:41

TheInfernalCrow wrote:
Sorry, I mixed up the meaning of the remark

Ah, that will happen. I have a small list of number one rules. One of them is:

Always suspect that "I" made a mistake. This rule causes you to check and recheck your work, including reading documentation, before taking off on a wild goose chase.

Good luck.

TheInfernalCrow5-Nov-07 19:15