C / C++ / MFC Discussion Boards

First Prev Next

Re: memory usage

Farah Mansor25-Jul-01 15:15

Farah Mansor

25-Jul-01 15:15

What is BoundsChecker?? I seen it in other msg too but still don't know what is BoundsChecker.
Can you please explain what it is. Smile | :)

Thanks for your help. Rose | [Rose]

Re: memory usage

Steve Chou25-Jul-01 16:04

Steve Chou

25-Jul-01 16:04

It is a software that help you to detect run-time error.
you can go to the following web page to check it out.
http://www.numega.com/devcenter/bc.shtml

Converting Jet 3.0 file to Jet 4.0

Doug Garno25-Jul-01 0:09

Doug Garno

25-Jul-01 0:09

Does anyone know how to convert the Jet 3.0 file into Jet 4.0 format? The CDaoDatabase::CompactDatabase() can only specify dbVersion30 option. Looking at the available options it appears that MFC and DAO hasn't a option for dbVersion40.

Re: Converting Jet 3.0 file to Jet 4.0

Hadi Rezaee25-Jul-01 2:13

Hadi Rezaee

25-Jul-01 2:13

For opening the Access 2000 (Jet engine 4.0):
You must write:
AfxGetModuleState->m_Version = 0x601;
Then you can open Access 2000 files with:
m_db.Open("C:\\db1.mdb"); // ACCESS 2000 FILE
Wink | ;)

My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html

Hadi Rezaie

Re: Converting Jet 3.0 file to Jet 4.0

Doug Garno25-Jul-01 2:23

Doug Garno

25-Jul-01 2:23

Yes you are correct, that is what is required to Open a Jet 4.0 file, but that doesn't convert the file from 3.0 format to 4.0.

Re: Converting Jet 3.0 file to Jet 4.0

Tomasz Sowinski25-Jul-01 2:33

Tomasz Sowinski

25-Jul-01 2:33

dbdaoint.h contains the following enumeration...

typedef enum DatabaseTypeEnum {
    dbVersion10 = 1,
    dbEncrypt = 2,
    dbDecrypt = 4,
    dbVersion11 = 8,
    dbVersion20 = 16,
    dbVersion30 = 32
} DatabaseTypeEnum;

... so it seems that dbVersion40 equals 64. You can also use Object Viewer in Visual Basic to check the actual value from type library. Access 2000 should also have this defined. Anyway, let me know what happens with 0x40 Big Grin | :-D

Tomasz Sowinski -- http://www.shooltz.com

Re: Converting Jet 3.0 file to Jet 4.0

Doug Garno25-Jul-01 3:24

Doug Garno

25-Jul-01 3:24

That worked:
CDaoWorkspace::CompactDatabase( csOld, csNew, dbLangGeneral, 64 );

I was leaning that way but I thought I would just ask the experts here and save me some time. Thanks for your help.

Making A CStatics Text Go Bold

AJ12324-Jul-01 23:47

AJ123

24-Jul-01 23:47

I am trying to make the text bold in a CStatic. I wrote the following code, Can anyone see where i am going wrong.

CFont *M_titleFont is a member varible.

Code Snippet, from oninitdialog:

LOGFONT lf;

m_titleFont= GetDlgItem(IDC_TITLE)->GetFont();
m_titleFont->GetLogFont(&lf);
lf.lfWeight = 700; //Set Bold

m_titleFont->CreateFontIndirect(&lf);

Cheers

Rich

Re: Making A CStatics Text Go Bold

Doug Garno25-Jul-01 0:05

Doug Garno

25-Jul-01 0:05

The problem is in the GetFont() call. MFC wrapps the HFONT in a temporary CFont object and when you call the CreateFontIndirect() a new HFONT is created in the temporary object and never gets back to the control. All you have to do is tell the control to use the new font, GetDlgItem( IDC_TITLE )->SetFont( m_titleFont );

Re: Making A CStatics Text Go Bold

AJ12325-Jul-01 4:56

AJ123

25-Jul-01 4:56

Cheers! That was driving me up the wall!

C++ - Obtaining IP Addr of machine

Gerry24-Jul-01 23:32

Gerry

24-Jul-01 23:32

How can I obtain the ip address of the machine using c++.

Currently I've been using gethostbyname & getcomputername but this returns the DNS, I want the IP.

Cheers

Gerry.

Re: C++ - Obtaining IP Addr of machine

Joaquín M López Muñoz24-Jul-01 23:52

Joaquín M López Muñoz

24-Jul-01 23:52

You've got the answer on the excellent Warren Young's Winsock Programmer's FAQ, section 6.5

Regards,

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: C++ - Obtaining IP Addr of machine

Gerry25-Jul-01 0:31

Gerry

25-Jul-01 0:31

Thank you, this did the job.

Gerry.

have some wrap-class for parse regular expression?

Jeason Zhao24-Jul-01 22:10

Jeason Zhao

24-Jul-01 22:10

I want a wrap class for parse regular expression ,can u help me?
Thank in advance! Big Grin | :-D

Please pardon my weak English!

Re: have some wrap-class for parse regular expression?

Joaquín M López Muñoz25-Jul-01 0:53

Joaquín M López Muñoz

25-Jul-01 0:53

You might want to take a look at the very C++-oriented John Maddock's Regex++ library

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Simple question: How many BYTEs have in UINT type ?

24-Jul-01 21:47

Re: Simple question: How many BYTEs have in UINT type ?

Claudius Mokler24-Jul-01 22:02

Claudius Mokler

24-Jul-01 22:02

Depends on the compiler you're using.

If it's a 32-bit compiler (MSVC++ 2 or up for instance),
it would probably be 4.
It if were a 16-bit compiler, it would be 2.

Check it yourself:

printf("Size of UINT is %d BYTES\n", sizeof (UINT));

Thanks ! sizeof returns int ! Is int=BYTE always ?

24-Jul-01 22:32

about microsoft agent 2.0 ActiveX

24-Jul-01 21:29

If I use Microsoft Agent 2.0 ActiveX or com Interface for programming,
(Microsoft Visual C++6.0)
how can I add a button or CheckList on WordBalloon like Microsoft Office Assistants?
if you know,please mail to:liuchuan2901@sina.com.
Thank you !

Design issue

- Emanuele -24-Jul-01 21:29

- Emanuele -

24-Jul-01 21:29

I’m writing an MFC Doc/View (SDI) application with database support (DAO).
In CMyDoc class I put a member variable CmyDaoDB* m_MyDaoDB and some function to add/delete data to/from Database.
On the view I build a listbox control in wich I need to put the entire recordset (say Customers).
I’d like to buil a member function in the CmyDoc class that return the list of Customer to view. But how?
I think that the only solution is to access directly to CmyDaoDB from the view to get the customers:
while (!m_MyDaoDb->IsEOF())
{
/* Put the record in the list control */
m_MyDaoDb->MoveNext()
}
Is there a better way to get that list? (I mean more OO)

Re: Design issue

Doug Garno24-Jul-01 23:53

Doug Garno

24-Jul-01 23:53

You have the basic idea. The way that I do it is to pass the list control to the Doc and have the doc populate the list, that way the View doesn't need to know anything about the database. Something like this:

CDoc::AddCustomers( CListCtrl* pList )
{
// Reset the list control content
pList->DeleteAllItems();

// I'm assuming that you somehow get a CDaoRecordset for the Customer table
// and not accessing the database object directly.
m_MyDaoDB->MoveFirst();
while( m_MyDaoDB->IsEOF() != 0 )
{
// Add the record to the list
m_MyDaoDB->MoveNext();
}
}

Don't know if this is a better OO way, but the Doc should know about the data, and the view handles the UI. I like to keep access to the data in the Doc and the View handles the display and user interaction.

Re: Design issue

Tomasz Sowinski25-Jul-01 1:54

Tomasz Sowinski

25-Jul-01 1:54

Is there a better way to get that list? (I mean more OO)

"More OO" solution is to create a public member in your doc class which takes CListBox reference as an argument and fills the window with database contents:

// error handling omitted
void CYourDoc::FillListBox(CListBox &lbx)
{
// use m_MyDaoDb here to fill &lbx
while (!m_MyDaoDb->IsEOF())
{
int idx = lbx.AddString(...);
lbx.SetItemData(idx, ...);
m_MyDaoDb->MoveNext();
}
}

Tomasz Sowinski -- http://www.shooltz.com

nowrap in CRichEditCtrl?

24-Jul-01 21:01

How can I set CRichEditCtrl not to make automatic wrap (word break)?

Re: nowrap in CRichEditCtrl?

25-Jul-01 1:51

Enable Auto HScroll.

/Per

Re: nowrap in CRichEditCtrl?

25-Jul-01 2:04

Enable Auto HScroll.

/Per

Last Visit: 31-Dec-99 18:00 Last Update: 10-Jun-24 0:46

Refresh

ᐊ Prev 1...18150 18151 18152 181531815418155 18156 18157 18158 18159 Next ᐅ

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.