Re: Linking Error : can not select the ........... - C / C++ / MFC Discussion Boards

Eytukan21-Sep-06 6:17

21-Sep-06 6:17

Did you set IP_ADD_MEMBERSHIP using setsockoptin the application running in your Embedded Device?

Eg:
setsockopt(hSock,IPPROTO_IP,IP_ADD_MEMBERSHIP...

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[My Current Status]

Link2006 wrote:Let's take it outside of CP
Jeremy : Please don't.I would love to see this.I'm making the popcorn already.

Re: Receive broadcast UDP

jeron121-Sep-06 7:17

jeron1

21-Sep-06 7:17

Found it...The person who wrote the embedded device assured me that his packet was good...but I found an issue with the 'Total Length' field in the IP header, it was off by 1. As soon as he made the change, my app got the data (my hairline is thankful). Oddly enough Ethereal (which is a great product) didn't make mention of this discrepency. Luckily we had an old Agilent packet analyzer which clued me in. I really appreciate your response. Smile | :)

Jeron

To reduce the duplication of exes

johnalek21-Sep-06 3:44

johnalek

21-Sep-06 3:44

in my project require to run the exe multiple times,at the same time when new exe of same project is run then immediately previous instatiation of that exe is neceaasry to close.ie when new instance is open then previous insatace should close.please kindely help in my project.

#sanroop#

Re: To reduce the duplication of exes

toxcct21-Sep-06 3:48

toxcct

21-Sep-06 3:48

Sanroop wrote:
please kindely help in my project.

for that, you will have to express yourself a bit more clearly,because i don't really understand what you're trying to explain...

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: To reduce the duplication of exes

Eytukan21-Sep-06 3:48

Eytukan

21-Sep-06 3:48

What's the use of closing the old one and running the new one? why not you stop the new one instead?

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[My Current Status]

Link2006 wrote:Let's take it outside of CP
Jeremy : Please don't.I would love to see this.I'm making the popcorn already.

Re: To reduce the duplication of exes

David Crow21-Sep-06 4:11

David Crow

21-Sep-06 4:11

Is this what you are looking for?

"Talent without discipline is like an octopus on roller skates. There's plenty of movement, but you never know if it's going to be forward, backwards, or sideways." - H. Jackson Brown, Jr.

"Judge not by the eye but by the heart." - Native American Proverb

Linking Error : can not select the ...........

Y_Kaushik21-Sep-06 3:16

Y_Kaushik

21-Sep-06 3:16

Hi All's
i used MySQL 5.0 as an databases in my project But
in my PC there are not any library for connecting Front End (VC++)

can i download it from net and simply copy in my PC
or
i have to again download the MySQL from net and then instroled it.

what i have to do now .Please Help Me

Thanking to all of you

mailing me
Yogi

Re: Linking Error : can not select the ...........

David Crow21-Sep-06 3:18

David Crow

21-Sep-06 3:18

Can't you just use ODBC or ADO?

Re: Linking Error : can not select the ...........

Eytukan21-Sep-06 3:59

Eytukan

21-Sep-06 3:59

What about going the ADO way?

#import "C:\Program Files\Common Files\System\ADO\msado15.dll" \
no_namespace rename("EOF", "EndOfFile")

I use the above ADO COM dll for my DBs. That's cool.

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[My Current Status]

Link2006 wrote:Let's take it outside of CP
Jeremy : Please don't.I would love to see this.I'm making the popcorn already.

VB application error

irudayam21-Sep-06 2:40

irudayam

21-Sep-06 2:40

I have built a dll using vc++. It is a multithreaded ATL dll using MFC class. It arises events. I included the dll in VB and tried to handle those events. But it shows a application error (when the event is raised) and exits. anyone please provide help. thanks

cleo

Re: VB application error

toxcct21-Sep-06 2:47

toxcct

21-Sep-06 2:47

as you don't provide much infos, we cannot help you.

if you feel the problem is more relating to the VB part of your code, ask in the VB forum.

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: VB application error

David Crow21-Sep-06 3:04

David Crow

21-Sep-06 3:04

What happens if you use the DLL in a separate application created with VC++?

Re: VB application error

Eytukan21-Sep-06 3:57

Eytukan

21-Sep-06 3:57

Are you calling the event from a thread? If so you cannot do it directly. You need marshalling before you could fire the event from your worker theard. Tell me are you calling it from a worker thread?

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[My Current Status]

Link2006 wrote:Let's take it outside of CP
Jeremy : Please don't.I would love to see this.I'm making the popcorn already.

Re: VB application error

Roger Stoltz21-Sep-06 4:00

Roger Stoltz

21-Sep-06 4:00

There's a lot that could be wrong, especially since it's a multithreaded server.
One common mistake is to fire events from a secondary thread without setting up the apartment for the secondary thread properly and not marshalling interfaces when crossing apartment boundaries.
If you by any chance are firing events from a secondary thread, have a look at Michael Lindig's solution for the problem here[^].
Another way is to post a message to the thread that created the server and fire the event from there.

Don't forget to call ::CoInitializeEx() / ::CoUninitialize() in you secondary thread if you're using any COM objects inside it.

Hope this helps
--
Roger

It's supposed to be hard, otherwise anybody could do it!

How to fix th e windows position at startup

kiranin21-Sep-06 2:31

kiranin

21-Sep-06 2:31

After executuin the application the windows will be started same position.
How we fix the position?

Re: How to fix th e windows position at startup

toxcct21-Sep-06 2:33

toxcct

21-Sep-06 2:33

SetWindowPos()<br />
<br />
MoveWindow()

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: How to fix th e windows position at startup

Hamid_RT21-Sep-06 8:42

Hamid_RT

21-Sep-06 8:42

...and also see WM_SIZE

WhiteSky

project name changing

_tasleem21-Sep-06 2:28

_tasleem

21-Sep-06 2:28

hi all i had made a projec named i.e abc then it make the exe of that project named abc.exe, now i want to change the project name so that it changes the exe name as well how it is possible one way is to manually change the exe name but it had to do again and again which i dont want. any solution of that.

Tasleem Arif

Re: project name changing

Cedric Moonen21-Sep-06 2:34

Cedric Moonen

21-Sep-06 2:34

You don't need to change your project name in order to change the executable name. To change the output file name, it depends of the IDE you are using. For VC2005, go into your project properties -> 'Linker' -> 'General' -> 'Output file'.

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Re: project name changing

_tasleem21-Sep-06 3:31

_tasleem

21-Sep-06 3:31

thanks i was using vc++6 but changed the output file name as u hinted.

Tasleem Arif

Re: project name changing

Hamid_RT21-Sep-06 8:44

Hamid_RT

21-Sep-06 8:44

if you want to change project name (not exe file) see Visual Studio Project Renamer[^]

WhiteSky

Unicode build

rana7421-Sep-06 2:13

rana74

21-Sep-06 2:13

We have a downloadable COM component which traps user actions on html form elements,stores them and later replays them.
Now,assume the distributable is UNICODE built.
And heres an sample scenario to capture the value from a text-box element on a form:

CComPtr<ihtmlelement> spElem;
CComVariant varval;

hr=spElem->getAttribute(CComBSTR(L"Value"),FALSE,&varval);
if(FAILED(hr))
{
return S_FALSE;
}
we convert it into a wstring using OLE2T (unicode)- and later set it back on the element as a BSTR, during replay.

Will this arrangment handle clients from ASCII locales too?or does a ASCII entry need a MBCS distributable?i.e can wstring handle both ASCII and non-ASCII locales seamlessly?

SetWindowText, Strange Problem!

Mohammad Rastkar21-Sep-06 1:51

Mohammad Rastkar

21-Sep-06 1:51

Hi, all...

I do the followings (in VC++ 6) :

1. Create an 'MFC AppWizard (exe)' project
2. Just delete the text : "TODO : ..." in the dialog box
3. Add an EditBox (IDC_EDIT1)
4. With ClassWizard, define this MemberVariable for IDC_EDIT1 : Member : m_edit1, Type : CEdit
5. For supporting Unicode parameters :
5.1. Add the _UNICODE in -> [Menu]->[Project]->[Settings...]->[C/C++] (with category General) -> in {Preprocessor definitions}.
5.2. Add wWinMainCRTStartup in ->[Menu]->[Project]->[Settings...]->[Link] (with category Output) ->in {Entry-point symbol:}

6. Add EN_CHANGE Message to IDC_EDIT1
6.1.Write this line in EN_CHANGE Message handler function for IDC_EDIT1 (void CTestDlg::OnChangeEdit1() ) :

m_edit1.SetWindowText( _T("Any text, even NULL") ); // No difference when using 'L' instead of '_T()'

OK, then the program builds successfully, and runs...
Problem : now, I input a character in editbox, Oops! the program terminates! WTF | :WTF:

Whats the problem ?!

Thanks.

Re: SetWindowText, Strange Problem!

toxcct21-Sep-06 2:00

toxcct

21-Sep-06 2:00

the program terminates, or hangs ?

calling SetWindowText() generates an EN_CHANGE event to be thrown.

change your event with this :

CTestDlg::OnChangeEdit1() {
    static bool b = false;
    if (!b) {
        b = true;
 
        m_edit->SetWindowText("Hello");
 
        b = false;
    }
}

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Your code worked!

Mohammad Rastkar21-Sep-06 2:15

Mohammad Rastkar

21-Sep-06 2:15

Thanks...

I think it's just abuot calling again and agian the EN_CHANGE message...
It's interesting that the program terminats not hangs ! Sniff | :^)

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