C / C++ / MFC Discussion Boards

Anonymous7-Oct-05 4:43

7-Oct-05 4:43

It's *got* to be something in my SharewareDlg.h file because I moved my class to a separate file and it worked fine. Thanks.

Bill Dennis

Re: Class not visible

Jose Lamas Rios7-Oct-05 5:00

Jose Lamas Rios

7-Oct-05 5:00

Check to see if you have a copy of SharewareDlg.h in some other directory in the include path. You might be adding your class in a different file than the one the compiler is picking.

--
jlr
http://jlamas.blogspot.com/[^]

Re: Class not visible

Anonymous7-Oct-05 5:11

Anonymous

7-Oct-05 5:11

I fixed the problem by moving my class to the very beginning of SharewareDlg.h before the if !defined statement.

Thanks, guys.

Re: Class not visible

Jose Lamas Rios7-Oct-05 5:23

Jose Lamas Rios

7-Oct-05 5:23

Anonymous wrote:
I fixed the problem by moving my class to the very beginning of SharewareDlg.h before the if !defined statement.

I think you fixed the symptom, not the problem... Smile | :)

Anonymous wrote:
Thanks, guys.

You're welcome.

--
jlr
http://jlamas.blogspot.com/[^]

Send mail from apps: different ways...

SonOfGrey6-Oct-05 23:22

SonOfGrey

6-Oct-05 23:22

Hi all,

I'm working on an application that preferably has to send a mail to the user once in a while while it's running. Problem is that it really also has to be able do this when the pc is connected to the internet through another account (other ISP).

The question is: how can I do this as flexible as possible?

Sending the info with HTTP GET or POST works fine, uses port 80 which is usually open already, but needs some kind of PHP script installed on a webserver to accept the info and mail it. This is the disadvantage (not so user friendly).
Using local computer settings (SMTP server) to mail from within the app works too, but won't necessarily work anymore when the pc is connected through another internet account. For example, my ISP only allows to use their SMTP server. So I can not use the one from my hosting company. If I connect my pc somewhere else, with an internet account not from my ISP, then my settings won't work.
Could I use a built-in SMTP sever in my app? Are there ways to make sure the mail can be sent, no matter which ISP account is used (see problem above)? Won't a built-in SMTP server be blocked frequently by firewall settings? Can you mail through more standard ports (80?) instead?
Or should I just let the user configure more SMTP servers and let the app traverse the list until it finds one that works?

I hope you see what I want to do and what my problem is.

Any suggestions are greatly appreciated!
SonOfGrey

-- modified at 5:22 Friday 7th October, 2005

Key Entry

Mike Winter6-Oct-05 22:43

Mike Winter

6-Oct-05 22:43

Hi again!
I now have another (simple) problem!
I have a dialog box with a listbox control on it, which has been loaded with several strings. I want to be able to select a string, and then delete it by pressing the <delete> key. I havnt been able to detect any key being pressed. What do I need to do?

I have used MFC Classwizard to add message handlers for WM_KEY_DOWN and WM_KEY_UP, but it doesnt seam to work - where am I going wrong?

Thanks yet again!

Re: Key Entry

khan++6-Oct-05 23:54

khan++

6-Oct-05 23:54

You can subclass the control. Create message handler for WM_KEYUP message:

void ..... OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags)
{
    if (nChar == VK_DELETE)
    {
    //delete the string here.
    }

    CListBox::OnKeyUp(nChar, nRepCnt, nFlags);
}

Maybe there are better ways.

this is this.

Re: Key Entry

Mike Winter7-Oct-05 0:44

Mike Winter

7-Oct-05 0:44

Hi Khan++

Thanks for your help - yep thats got it now!

Thanks again

Mike

OPC

Marc Soleda6-Oct-05 22:32

Marc Soleda

6-Oct-05 22:32

Is anybody developing apps/components that are OPC compliance. I just wanted to know if OPC is still alive and it's used as standard for industrial client / server applications.

Marc Soleda.

... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.

Re: OPC

Blake V. Miller8-Oct-05 15:12

Blake V. Miller

8-Oct-05 15:12

OPC clients are developed all the time at Wonderware - www.wonderware.com
Many third parties write OPC clients as well and OPC servers for the PLC devices.

Re: OPC

Marc Soleda9-Oct-05 20:27

Marc Soleda

9-Oct-05 20:27

I just wondered if OPC is the main protocol/standard that is used for inustrial communications. Thanks for ithe info.

What are trends in this item, I mean, are there any other teck or standard that some companies are investing ?

Marc Soleda.

... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.

ODBC with VC++

sirtimid6-Oct-05 22:10

sirtimid

6-Oct-05 22:10

I try to open a table "Customer" and select a specific record of it with the Open property as follows:
m_pSet->Open(CCustomer::dynaset,"SELECT NAME FROM CUSTOMER WHERE ID = 5"
This command throws the following exception error:
"Invalid character value for cast specification"

Does anyone know what have I done wrong and how to make it work properly?

Thanks in advance

Re: ODBC with VC++

KaЯl7-Oct-05 2:08

KaЯl

7-Oct-05 2:08

Did you try m_pSet->Open(CRecordSet::dynaset,_T("SELECT NAME FROM CUSTOMER WHERE ID = 5")) ?

The great error of nearly all studies of war has been to consider war as an episode in foreign policies, when it is an act of interior politics - Simone Weil
Fold with us! ¤ flickr

Re: ODBC with VC++

sirtimid7-Oct-05 2:59

sirtimid

7-Oct-05 2:59

Yes I already tried it.
I saw that this was because in the DoFiledExchange() the first field must be of the same type with the requested one in the Select clause.

Thanks very much for your time!
Any idea?

Re: ODBC with VC++

KaЯl7-Oct-05 4:07

KaЯl

7-Oct-05 4:07

sirtimid wrote:
this was because in the DoFiledExchange() the first field must be of the same type with the requested one in the Select claus
I watched the source code of the CRecordSet class, the enum being public, I suppose your class can inherit it so your syntax is also correct (even if misleading, but it is just my opinion)

I'm not an expert in database access, but I'm not sure the problem comes from this part of code. After some googling[^], I found this:

"Typically, this error means the import process is trying to convert (cast) a value in the text file from a character data type to another data type such as numeric or datetime and the value in the text file is not valid for the new data type. "[^]

HTH,

K.

The great error of nearly all studies of war has been to consider war as an episode in foreign policies, when it is an act of interior politics - Simone Weil
Fold with us! ¤ flickr

Re: ODBC with VC++

sirtimid7-Oct-05 4:22

sirtimid

7-Oct-05 4:22

OK I found why this error occured.
This was because in the DoFieldExchanged() I have all the fields of the table, so the Open() should be with NULL value at the second argument (LPCTSTR lpszSQL=NULL).
So, I tried the following:

m_pSet = new CDatabaseSet;
m_pSet->m_strFilter = "ID = 48";
m_pSet->Open(CDatabaseSet::dynaset);

Now the problem is that it works properly when the filter has a field of numeric type.
When it is of character type it doesn't work properly.
It returns the last record even if it shouldn't return anything.
Any idea on why this happens???

Thanks again for your help!!!

Help needed - to retrieve the security permissions over a Folder/file

6-Oct-05 22:03

I need to check the security permissions over a folder(which means i need to iterate over the ACE's from the DACL)and check whether the logged in user has some permissions over them.

Heres how i approached this problem -

1)I am using GetFileSecurity() function to get the Security descriptor for
this folder.
2)Next i check whether this descriptor is valid using IsValidSecurityDescriptor().It returns TRUE.

3)Next, i am using the function GetSecurityDescriptorDacl() to get the DACL.
4)The second parameter to this function is an out parameter (a pointer to a bool)which is set to TRUE if DACL is present.

IT is here that in this out parameter i am getting a FALSE value.
What does this imply(coz right clikin the folder to retrieve the security permissions i can get a DACL)

please help

Anmol

-- modified at 7:44 Friday 7th October, 2005

mfc edit box

swaapu6-Oct-05 21:58

swaapu

6-Oct-05 21:58

hi!
i am working on an MFC SDI Application. I have an EditBox on a dialog for dispalying path of files. I hav also used a Button for browsing files.
My Browse button is working , but, i also want that "the path of the file can be entered directly into the edit box." How to do it?
But, I had not used EditBox earlier as i am new to mfc programming. can anybody help me at this issue.
Thanx for providing me help

Re: mfc edit box

P-Rex6-Oct-05 22:43

P-Rex

6-Oct-05 22:43

CString strPath<br />
GetDlgItemText(IDC_EDIT_PATH, strPath);<br />

Re: mfc edit box

toxcct6-Oct-05 22:42

toxcct

6-Oct-05 22:42

use CWnd::SetWindowText(CString) for this:

((CEdit*)GetDlgItem(IDC_MY_EDIT))->SetWindowText(strFileName);
((CEdit*)GetDlgItem(IDC_MY_EDIT))->GetWindowText(strFileName); 
or
 
m_MyEdit.SetWindowText(strFileName);
m_MyEdit.GetWindowText(strFileName);

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: mfc edit box

ThatsAlok7-Oct-05 0:32

ThatsAlok

7-Oct-05 0:32

swaapu wrote:
But, I had not used EditBox earlier as i am new to mfc programming. can anybody help me at this issue.
Thanx for providing me help

Using ClassWizard(Ctrl + W ) associate a CString Variable with the Edit Box.. When ever you need the value from the Edit Box

From Edit Box
 UpdateData(<code>TRUE</code>);
MessageBox( m_strEditBox,"Data in Edit Box");

TO Edit Box
 m_strEditBox="codeproject";
 UpdateData(<code>FALSE</code>);

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

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

SWF in VC++

Nishad S6-Oct-05 21:44

Nishad S

6-Oct-05 21:44

How can I play swf (flash) file in VC/MFC without the help of standard flash player?
Is there any library available?

- NS -

Re: SWF in VC++

Axonn Echysttas6-Oct-05 22:38

Axonn Echysttas

6-Oct-05 22:38

It is possible if you wish to use the ActiveX that Macromedia provides you with ::- ). I did this plenty of times with success in Visual Basic and C#. I will write an article about this perhaps if I'll have time, unfortunately, my time is quite scarce.

You can find the ActiveX on your computer in WINDIR\System32\Macromed\Flash\Flash.ocx. I don't know how to include ActiveXes in Visual C++ but I'm sure that the gurus around here can tell you about that. After you include the ActiveX, you can use its properties and methods to play any kind of Flash in your application. The nice part is that you can even communicate with Flash!! You can send data to Flash or receive from Flash. Just inspect the ActiveX's methods and the documentation by Macromedia.

-= E C H Y S T T A S =-
The Greater Mind Balance

Serial Communication in MFC

vikas amin6-Oct-05 21:30

vikas amin

6-Oct-05 21:30

Can anyone tell me the best way
to use the serialport in MFC
application.
If anyone has used and tested any
class then it will me more helpfull

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Re: Serial Communication in MFC

Roger Stoltz6-Oct-05 21:42

Roger Stoltz

6-Oct-05 21:42

Have a look among the articles in the System section:
http://www.codeproject.com/system/#Hardware+programming[^]

--
Roger

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